80821984300

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1\times {\mathrm{487}}^1$

素因数の和:908

約数の個数: 144

約数和(自身を含む): 181089784512

約数和(自身を除く): 100267800212

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 173, 181, 212, 265, 346, 362, 487, 530, 692, 724, 865, 905, 974, 1060, 1325, 1730, 1810, 1948, 2435, 2650, 3460, 3620, 4325, 4525, 4870, 5300, 8650, 9050, 9169, 9593, 9740, 12175, 17300, 18100, 18338, 19186, 24350, 25811, 31313, 36676, 38372, 45845, 47965, 48700, 51622, 62626, 84251, 88147, 91690, 95930, 103244, 125252, 129055, 156565, 168502, 176294, 183380, 191860, 229225, 239825, 258110, 313130, 337004, 352588, 421255, 440735, 458450, 479650, 516220, 626260, 645275, 782825, 842510, 881470, 916900, 959300, 1290550, 1565650, 1659589, 1685020, 1762940, 2106275, 2203675, 2581100, 3131300, 3319178, 4212550, 4407350, 4465303, 4671791, 6638356, 8297945, 8425100, 8814700, 8930606, 9343582, 15249431, 16595890, 17861212, 18687164, 22326515, 23358955, 30498862, 33191780, 41489725, 44653030, 46717910, 60997724, 76247155, 82979450, 89306060, 93435820, 111632575, 116794775, 152494310, 165958900, 223265150, 233589550, 304988620, 381235775, 446530300, 467179100, 762471550, 808219843, 1524943100, 1616439686, 3232879372, 4041099215, 8082198430, 16164396860, 20205496075, 40410992150, 80821984300]

約数ペア:

[(1, 80821984300), (2, 40410992150), (4, 20205496075), (5, 16164396860), (10, 8082198430), (20, 4041099215), (25, 3232879372), (50, 1616439686), (53, 1524943100), (100, 808219843), (106, 762471550), (173, 467179100), (181, 446530300), (212, 381235775), (265, 304988620), (346, 233589550), (362, 223265150), (487, 165958900), (530, 152494310), (692, 116794775), (724, 111632575), (865, 93435820), (905, 89306060), (974, 82979450), (1060, 76247155), (1325, 60997724), (1730, 46717910), (1810, 44653030), (1948, 41489725), (2435, 33191780), (2650, 30498862), (3460, 23358955), (3620, 22326515), (4325, 18687164), (4525, 17861212), (4870, 16595890), (5300, 15249431), (8650, 9343582), (9050, 8930606), (9169, 8814700), (9593, 8425100), (9740, 8297945), (12175, 6638356), (17300, 4671791), (18100, 4465303), (18338, 4407350), (19186, 4212550), (24350, 3319178), (25811, 3131300), (31313, 2581100), (36676, 2203675), (38372, 2106275), (45845, 1762940), (47965, 1685020), (48700, 1659589), (51622, 1565650), (62626, 1290550), (84251, 959300), (88147, 916900), (91690, 881470), (95930, 842510), (103244, 782825), (125252, 645275), (129055, 626260), (156565, 516220), (168502, 479650), (176294, 458450), (183380, 440735), (191860, 421255), (229225, 352588), (239825, 337004), (258110, 313130)]