20257388640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{265427}}^1$

素因数の和:265501

約数の個数: 144

約数和(自身を含む): 70432912368

約数和(自身を除く): 50175523728

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 53, 60, 72, 80, 90, 96, 106, 120, 144, 159, 160, 180, 212, 240, 265, 288, 318, 360, 424, 477, 480, 530, 636, 720, 795, 848, 954, 1060, 1272, 1440, 1590, 1696, 1908, 2120, 2385, 2544, 3180, 3816, 4240, 4770, 5088, 6360, 7632, 8480, 9540, 12720, 15264, 19080, 25440, 38160, 76320, 265427, 530854, 796281, 1061708, 1327135, 1592562, 2123416, 2388843, 2654270, 3185124, 3981405, 4246832, 4777686, 5308540, 6370248, 7962810, 8493664, 9555372, 10617080, 11944215, 12740496, 14067631, 15925620, 19110744, 21234160, 23888430, 25480992, 28135262, 31851240, 38221488, 42202893, 42468320, 47776860, 56270524, 63702480, 70338155, 76442976, 84405786, 95553720, 112541048, 126608679, 127404960, 140676310, 168811572, 191107440, 211014465, 225082096, 253217358, 281352620, 337623144, 382214880, 422028930, 450164192, 506434716, 562705240, 633043395, 675246288, 844057860, 1012869432, 1125410480, 1266086790, 1350492576, 1688115720, 2025738864, 2250820960, 2532173580, 3376231440, 4051477728, 5064347160, 6752462880, 10128694320, 20257388640]

約数ペア:

[(1, 20257388640), (2, 10128694320), (3, 6752462880), (4, 5064347160), (5, 4051477728), (6, 3376231440), (8, 2532173580), (9, 2250820960), (10, 2025738864), (12, 1688115720), (15, 1350492576), (16, 1266086790), (18, 1125410480), (20, 1012869432), (24, 844057860), (30, 675246288), (32, 633043395), (36, 562705240), (40, 506434716), (45, 450164192), (48, 422028930), (53, 382214880), (60, 337623144), (72, 281352620), (80, 253217358), (90, 225082096), (96, 211014465), (106, 191107440), (120, 168811572), (144, 140676310), (159, 127404960), (160, 126608679), (180, 112541048), (212, 95553720), (240, 84405786), (265, 76442976), (288, 70338155), (318, 63702480), (360, 56270524), (424, 47776860), (477, 42468320), (480, 42202893), (530, 38221488), (636, 31851240), (720, 28135262), (795, 25480992), (848, 23888430), (954, 21234160), (1060, 19110744), (1272, 15925620), (1440, 14067631), (1590, 12740496), (1696, 11944215), (1908, 10617080), (2120, 9555372), (2385, 8493664), (2544, 7962810), (3180, 6370248), (3816, 5308540), (4240, 4777686), (4770, 4246832), (5088, 3981405), (6360, 3185124), (7632, 2654270), (8480, 2388843), (9540, 2123416), (12720, 1592562), (15264, 1327135), (19080, 1061708), (25440, 796281), (38160, 530854), (76320, 265427)]