20678460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:156

約数の個数: 192

約数和(自身を含む): 71124480

約数和(自身を除く): 50446020

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 19, 20, 22, 30, 33, 34, 38, 44, 51, 55, 57, 60, 66, 68, 76, 85, 95, 97, 102, 110, 114, 132, 165, 170, 187, 190, 194, 204, 209, 220, 228, 255, 285, 291, 323, 330, 340, 374, 380, 388, 418, 485, 510, 561, 570, 582, 627, 646, 660, 748, 836, 935, 969, 970, 1020, 1045, 1067, 1122, 1140, 1164, 1254, 1292, 1455, 1615, 1649, 1843, 1870, 1938, 1940, 2090, 2134, 2244, 2508, 2805, 2910, 3135, 3201, 3230, 3298, 3553, 3686, 3740, 3876, 4180, 4268, 4845, 4947, 5335, 5529, 5610, 5820, 6270, 6402, 6460, 6596, 7106, 7372, 8245, 9215, 9690, 9894, 10659, 10670, 11058, 11220, 12540, 12804, 14212, 16005, 16490, 17765, 18139, 18430, 19380, 19788, 20273, 21318, 21340, 22116, 24735, 27645, 31331, 32010, 32980, 35530, 36278, 36860, 40546, 42636, 49470, 53295, 54417, 55290, 60819, 62662, 64020, 71060, 72556, 81092, 90695, 93993, 98940, 101365, 106590, 108834, 110580, 121638, 125324, 156655, 181390, 187986, 202730, 213180, 217668, 243276, 272085, 304095, 313310, 344641, 362780, 375972, 405460, 469965, 544170, 608190, 626620, 689282, 939930, 1033923, 1088340, 1216380, 1378564, 1723205, 1879860, 2067846, 3446410, 4135692, 5169615, 6892820, 10339230, 20678460]

約数ペア:

[(1, 20678460), (2, 10339230), (3, 6892820), (4, 5169615), (5, 4135692), (6, 3446410), (10, 2067846), (11, 1879860), (12, 1723205), (15, 1378564), (17, 1216380), (19, 1088340), (20, 1033923), (22, 939930), (30, 689282), (33, 626620), (34, 608190), (38, 544170), (44, 469965), (51, 405460), (55, 375972), (57, 362780), (60, 344641), (66, 313310), (68, 304095), (76, 272085), (85, 243276), (95, 217668), (97, 213180), (102, 202730), (110, 187986), (114, 181390), (132, 156655), (165, 125324), (170, 121638), (187, 110580), (190, 108834), (194, 106590), (204, 101365), (209, 98940), (220, 93993), (228, 90695), (255, 81092), (285, 72556), (291, 71060), (323, 64020), (330, 62662), (340, 60819), (374, 55290), (380, 54417), (388, 53295), (418, 49470), (485, 42636), (510, 40546), (561, 36860), (570, 36278), (582, 35530), (627, 32980), (646, 32010), (660, 31331), (748, 27645), (836, 24735), (935, 22116), (969, 21340), (970, 21318), (1020, 20273), (1045, 19788), (1067, 19380), (1122, 18430), (1140, 18139), (1164, 17765), (1254, 16490), (1292, 16005), (1455, 14212), (1615, 12804), (1649, 12540), (1843, 11220), (1870, 11058), (1938, 10670), (1940, 10659), (2090, 9894), (2134, 9690), (2244, 9215), (2508, 8245), (2805, 7372), (2910, 7106), (3135, 6596), (3201, 6460), (3230, 6402), (3298, 6270), (3553, 5820), (3686, 5610), (3740, 5529), (3876, 5335), (4180, 4947), (4268, 4845)]