768567500

素因数分解:

$2^2\times 5^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:313

約数の個数: 120

約数和(自身を含む): 1780230144

約数和(自身を除く): 1011662644

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 47, 50, 62, 94, 100, 124, 125, 155, 188, 211, 235, 250, 310, 422, 470, 500, 620, 625, 775, 844, 940, 1055, 1175, 1250, 1457, 1550, 2110, 2350, 2500, 2914, 3100, 3875, 4220, 4700, 5275, 5828, 5875, 6541, 7285, 7750, 9917, 10550, 11750, 13082, 14570, 15500, 19375, 19834, 21100, 23500, 26164, 26375, 29140, 29375, 32705, 36425, 38750, 39668, 49585, 52750, 58750, 65410, 72850, 77500, 99170, 105500, 117500, 130820, 131875, 145700, 163525, 182125, 198340, 247925, 263750, 307427, 327050, 364250, 495850, 527500, 614854, 654100, 728500, 817625, 910625, 991700, 1229708, 1239625, 1537135, 1635250, 1821250, 2479250, 3074270, 3270500, 3642500, 4088125, 4958500, 6148540, 6198125, 7685675, 8176250, 12396250, 15371350, 16352500, 24792500, 30742700, 38428375, 76856750, 153713500, 192141875, 384283750, 768567500]

約数ペア:

[(1, 768567500), (2, 384283750), (4, 192141875), (5, 153713500), (10, 76856750), (20, 38428375), (25, 30742700), (31, 24792500), (47, 16352500), (50, 15371350), (62, 12396250), (94, 8176250), (100, 7685675), (124, 6198125), (125, 6148540), (155, 4958500), (188, 4088125), (211, 3642500), (235, 3270500), (250, 3074270), (310, 2479250), (422, 1821250), (470, 1635250), (500, 1537135), (620, 1239625), (625, 1229708), (775, 991700), (844, 910625), (940, 817625), (1055, 728500), (1175, 654100), (1250, 614854), (1457, 527500), (1550, 495850), (2110, 364250), (2350, 327050), (2500, 307427), (2914, 263750), (3100, 247925), (3875, 198340), (4220, 182125), (4700, 163525), (5275, 145700), (5828, 131875), (5875, 130820), (6541, 117500), (7285, 105500), (7750, 99170), (9917, 77500), (10550, 72850), (11750, 65410), (13082, 58750), (14570, 52750), (15500, 49585), (19375, 39668), (19834, 38750), (21100, 36425), (23500, 32705), (26164, 29375), (26375, 29140)]