280325500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:201

約数の個数: 192

約数和(自身を含む): 773450496

約数和(自身を除く): 493124996

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 61, 65, 70, 91, 100, 101, 122, 125, 130, 140, 175, 182, 202, 244, 250, 260, 305, 325, 350, 364, 404, 427, 455, 500, 505, 610, 650, 700, 707, 793, 854, 875, 910, 1010, 1220, 1300, 1313, 1414, 1525, 1586, 1625, 1708, 1750, 1820, 2020, 2135, 2275, 2525, 2626, 2828, 3050, 3172, 3250, 3500, 3535, 3965, 4270, 4550, 5050, 5252, 5551, 6100, 6161, 6500, 6565, 7070, 7625, 7930, 8540, 9100, 9191, 10100, 10675, 11102, 11375, 12322, 12625, 13130, 14140, 15250, 15860, 17675, 18382, 19825, 21350, 22204, 22750, 24644, 25250, 26260, 27755, 30500, 30805, 32825, 35350, 36764, 39650, 42700, 43127, 45500, 45955, 50500, 53375, 55510, 61610, 65650, 70700, 79300, 80093, 86254, 88375, 91910, 99125, 106750, 111020, 123220, 131300, 138775, 154025, 160186, 164125, 172508, 176750, 183820, 198250, 213500, 215635, 229775, 277550, 308050, 320372, 328250, 353500, 396500, 400465, 431270, 459550, 555100, 560651, 616100, 656500, 693875, 770125, 800930, 862540, 919100, 1078175, 1121302, 1148875, 1387750, 1540250, 1601860, 2002325, 2156350, 2242604, 2297750, 2775500, 2803255, 3080500, 4004650, 4312700, 4595500, 5390875, 5606510, 8009300, 10011625, 10781750, 11213020, 14016275, 20023250, 21563500, 28032550, 40046500, 56065100, 70081375, 140162750, 280325500]

約数ペア:

[(1, 280325500), (2, 140162750), (4, 70081375), (5, 56065100), (7, 40046500), (10, 28032550), (13, 21563500), (14, 20023250), (20, 14016275), (25, 11213020), (26, 10781750), (28, 10011625), (35, 8009300), (50, 5606510), (52, 5390875), (61, 4595500), (65, 4312700), (70, 4004650), (91, 3080500), (100, 2803255), (101, 2775500), (122, 2297750), (125, 2242604), (130, 2156350), (140, 2002325), (175, 1601860), (182, 1540250), (202, 1387750), (244, 1148875), (250, 1121302), (260, 1078175), (305, 919100), (325, 862540), (350, 800930), (364, 770125), (404, 693875), (427, 656500), (455, 616100), (500, 560651), (505, 555100), (610, 459550), (650, 431270), (700, 400465), (707, 396500), (793, 353500), (854, 328250), (875, 320372), (910, 308050), (1010, 277550), (1220, 229775), (1300, 215635), (1313, 213500), (1414, 198250), (1525, 183820), (1586, 176750), (1625, 172508), (1708, 164125), (1750, 160186), (1820, 154025), (2020, 138775), (2135, 131300), (2275, 123220), (2525, 111020), (2626, 106750), (2828, 99125), (3050, 91910), (3172, 88375), (3250, 86254), (3500, 80093), (3535, 79300), (3965, 70700), (4270, 65650), (4550, 61610), (5050, 55510), (5252, 53375), (5551, 50500), (6100, 45955), (6161, 45500), (6500, 43127), (6565, 42700), (7070, 39650), (7625, 36764), (7930, 35350), (8540, 32825), (9100, 30805), (9191, 30500), (10100, 27755), (10675, 26260), (11102, 25250), (11375, 24644), (12322, 22750), (12625, 22204), (13130, 21350), (14140, 19825), (15250, 18382), (15860, 17675)]