21722940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 72334080

約数和(自身を除く): 50611140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 31, 34, 36, 45, 51, 60, 62, 68, 85, 90, 93, 102, 124, 153, 155, 170, 180, 186, 204, 229, 255, 279, 306, 310, 340, 372, 458, 465, 510, 527, 558, 612, 620, 687, 765, 916, 930, 1020, 1054, 1116, 1145, 1374, 1395, 1530, 1581, 1860, 2061, 2108, 2290, 2635, 2748, 2790, 3060, 3162, 3435, 3893, 4122, 4580, 4743, 5270, 5580, 6324, 6870, 7099, 7786, 7905, 8244, 9486, 10305, 10540, 11679, 13740, 14198, 15572, 15810, 18972, 19465, 20610, 21297, 23358, 23715, 28396, 31620, 35037, 35495, 38930, 41220, 42594, 46716, 47430, 58395, 63891, 70074, 70990, 77860, 85188, 94860, 106485, 116790, 120683, 127782, 140148, 141980, 175185, 212970, 233580, 241366, 255564, 319455, 350370, 362049, 425940, 482732, 603415, 638910, 700740, 724098, 1086147, 1206830, 1277820, 1448196, 1810245, 2172294, 2413660, 3620490, 4344588, 5430735, 7240980, 10861470, 21722940]

約数ペア:

[(1, 21722940), (2, 10861470), (3, 7240980), (4, 5430735), (5, 4344588), (6, 3620490), (9, 2413660), (10, 2172294), (12, 1810245), (15, 1448196), (17, 1277820), (18, 1206830), (20, 1086147), (30, 724098), (31, 700740), (34, 638910), (36, 603415), (45, 482732), (51, 425940), (60, 362049), (62, 350370), (68, 319455), (85, 255564), (90, 241366), (93, 233580), (102, 212970), (124, 175185), (153, 141980), (155, 140148), (170, 127782), (180, 120683), (186, 116790), (204, 106485), (229, 94860), (255, 85188), (279, 77860), (306, 70990), (310, 70074), (340, 63891), (372, 58395), (458, 47430), (465, 46716), (510, 42594), (527, 41220), (558, 38930), (612, 35495), (620, 35037), (687, 31620), (765, 28396), (916, 23715), (930, 23358), (1020, 21297), (1054, 20610), (1116, 19465), (1145, 18972), (1374, 15810), (1395, 15572), (1530, 14198), (1581, 13740), (1860, 11679), (2061, 10540), (2108, 10305), (2290, 9486), (2635, 8244), (2748, 7905), (2790, 7786), (3060, 7099), (3162, 6870), (3435, 6324), (3893, 5580), (4122, 5270), (4580, 4743)]