20389964600

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:678

約数の個数: 192

約数和(自身を含む): 50621760000

約数和(自身を除く): 30231795400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 71, 92, 100, 115, 142, 149, 184, 200, 230, 284, 298, 355, 419, 460, 568, 575, 596, 710, 745, 838, 920, 1150, 1192, 1420, 1490, 1633, 1676, 1775, 2095, 2300, 2840, 2980, 3266, 3352, 3427, 3550, 3725, 4190, 4600, 5960, 6532, 6854, 7100, 7450, 8165, 8380, 9637, 10475, 10579, 13064, 13708, 14200, 14900, 16330, 16760, 17135, 19274, 20950, 21158, 27416, 29749, 29800, 32660, 34270, 38548, 40825, 41900, 42316, 48185, 52895, 59498, 62431, 65320, 68540, 77096, 81650, 83800, 84632, 85675, 96370, 105790, 118996, 124862, 137080, 148745, 163300, 171350, 192740, 211580, 237992, 240925, 243317, 249724, 264475, 297490, 312155, 326600, 342700, 385480, 423160, 481850, 486634, 499448, 528950, 594980, 624310, 684227, 685400, 743725, 963700, 973268, 1057900, 1189960, 1216585, 1248620, 1368454, 1435913, 1487450, 1560775, 1927400, 1946536, 2115800, 2433170, 2497240, 2736908, 2871826, 2974900, 3121550, 3421135, 4432601, 4866340, 5473816, 5743652, 5949800, 6082925, 6243100, 6842270, 7179565, 8865202, 9732680, 11487304, 12165850, 12486200, 13684540, 14359130, 17105675, 17730404, 22163005, 24331700, 27369080, 28718260, 34211350, 35460808, 35897825, 44326010, 48663400, 57436520, 68422700, 71795650, 88652020, 101949823, 110815025, 136845400, 143591300, 177304040, 203899646, 221630050, 287182600, 407799292, 443260100, 509749115, 815598584, 886520200, 1019498230, 2038996460, 2548745575, 4077992920, 5097491150, 10194982300, 20389964600]

約数ペア:

[(1, 20389964600), (2, 10194982300), (4, 5097491150), (5, 4077992920), (8, 2548745575), (10, 2038996460), (20, 1019498230), (23, 886520200), (25, 815598584), (40, 509749115), (46, 443260100), (50, 407799292), (71, 287182600), (92, 221630050), (100, 203899646), (115, 177304040), (142, 143591300), (149, 136845400), (184, 110815025), (200, 101949823), (230, 88652020), (284, 71795650), (298, 68422700), (355, 57436520), (419, 48663400), (460, 44326010), (568, 35897825), (575, 35460808), (596, 34211350), (710, 28718260), (745, 27369080), (838, 24331700), (920, 22163005), (1150, 17730404), (1192, 17105675), (1420, 14359130), (1490, 13684540), (1633, 12486200), (1676, 12165850), (1775, 11487304), (2095, 9732680), (2300, 8865202), (2840, 7179565), (2980, 6842270), (3266, 6243100), (3352, 6082925), (3427, 5949800), (3550, 5743652), (3725, 5473816), (4190, 4866340), (4600, 4432601), (5960, 3421135), (6532, 3121550), (6854, 2974900), (7100, 2871826), (7450, 2736908), (8165, 2497240), (8380, 2433170), (9637, 2115800), (10475, 1946536), (10579, 1927400), (13064, 1560775), (13708, 1487450), (14200, 1435913), (14900, 1368454), (16330, 1248620), (16760, 1216585), (17135, 1189960), (19274, 1057900), (20950, 973268), (21158, 963700), (27416, 743725), (29749, 685400), (29800, 684227), (32660, 624310), (34270, 594980), (38548, 528950), (40825, 499448), (41900, 486634), (42316, 481850), (48185, 423160), (52895, 385480), (59498, 342700), (62431, 326600), (65320, 312155), (68540, 297490), (77096, 264475), (81650, 249724), (83800, 243317), (84632, 240925), (85675, 237992), (96370, 211580), (105790, 192740), (118996, 171350), (124862, 163300), (137080, 148745)]