681644988

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:169

約数の個数: 216

約数和(自身を含む): 2016902160

約数和(自身を除く): 1335257172

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 19, 31, 34, 36, 38, 51, 57, 61, 62, 68, 76, 93, 102, 114, 122, 124, 153, 171, 183, 186, 204, 228, 244, 279, 306, 323, 342, 366, 372, 527, 549, 558, 589, 612, 646, 684, 732, 961, 969, 1037, 1054, 1098, 1116, 1159, 1178, 1292, 1581, 1767, 1891, 1922, 1938, 2074, 2108, 2196, 2318, 2356, 2883, 2907, 3111, 3162, 3477, 3534, 3782, 3844, 3876, 4148, 4636, 4743, 5301, 5673, 5766, 5814, 6222, 6324, 6954, 7068, 7564, 8649, 9333, 9486, 10013, 10431, 10602, 11346, 11532, 11628, 12444, 13908, 16337, 17019, 17298, 18259, 18666, 18972, 19703, 20026, 20862, 21204, 22692, 30039, 32147, 32674, 34038, 34596, 35929, 36518, 37332, 39406, 40052, 41724, 49011, 54777, 58621, 59109, 60078, 64294, 65348, 68076, 71858, 73036, 78812, 90117, 96441, 98022, 107787, 109554, 117242, 118218, 120156, 128588, 143716, 147033, 164331, 175863, 177327, 180234, 192882, 196044, 215574, 219108, 234484, 236436, 289323, 294066, 310403, 323361, 328662, 351726, 354654, 360468, 385764, 431148, 527589, 578646, 588132, 610793, 620806, 646722, 657324, 703452, 709308, 931209, 996557, 1055178, 1113799, 1157292, 1221586, 1241612, 1293444, 1832379, 1862418, 1993114, 2110356, 2227598, 2443172, 2793627, 2989671, 3341397, 3664758, 3724836, 3986228, 4455196, 5497137, 5587254, 5979342, 6682794, 7329516, 8969013, 10024191, 10994274, 11174508, 11958684, 13365588, 17938026, 18934583, 20048382, 21988548, 35876052, 37869166, 40096764, 56803749, 75738332, 113607498, 170411247, 227214996, 340822494, 681644988]

約数ペア:

[(1, 681644988), (2, 340822494), (3, 227214996), (4, 170411247), (6, 113607498), (9, 75738332), (12, 56803749), (17, 40096764), (18, 37869166), (19, 35876052), (31, 21988548), (34, 20048382), (36, 18934583), (38, 17938026), (51, 13365588), (57, 11958684), (61, 11174508), (62, 10994274), (68, 10024191), (76, 8969013), (93, 7329516), (102, 6682794), (114, 5979342), (122, 5587254), (124, 5497137), (153, 4455196), (171, 3986228), (183, 3724836), (186, 3664758), (204, 3341397), (228, 2989671), (244, 2793627), (279, 2443172), (306, 2227598), (323, 2110356), (342, 1993114), (366, 1862418), (372, 1832379), (527, 1293444), (549, 1241612), (558, 1221586), (589, 1157292), (612, 1113799), (646, 1055178), (684, 996557), (732, 931209), (961, 709308), (969, 703452), (1037, 657324), (1054, 646722), (1098, 620806), (1116, 610793), (1159, 588132), (1178, 578646), (1292, 527589), (1581, 431148), (1767, 385764), (1891, 360468), (1922, 354654), (1938, 351726), (2074, 328662), (2108, 323361), (2196, 310403), (2318, 294066), (2356, 289323), (2883, 236436), (2907, 234484), (3111, 219108), (3162, 215574), (3477, 196044), (3534, 192882), (3782, 180234), (3844, 177327), (3876, 175863), (4148, 164331), (4636, 147033), (4743, 143716), (5301, 128588), (5673, 120156), (5766, 118218), (5814, 117242), (6222, 109554), (6324, 107787), (6954, 98022), (7068, 96441), (7564, 90117), (8649, 78812), (9333, 73036), (9486, 71858), (10013, 68076), (10431, 65348), (10602, 64294), (11346, 60078), (11532, 59109), (11628, 58621), (12444, 54777), (13908, 49011), (16337, 41724), (17019, 40052), (17298, 39406), (18259, 37332), (18666, 36518), (18972, 35929), (19703, 34596), (20026, 34038), (20862, 32674), (21204, 32147), (22692, 30039)]