263019920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:213

約数の個数: 160

約数和(自身を含む): 683393760

約数和(自身を除く): 420373840

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 41, 53, 68, 80, 82, 85, 89, 106, 136, 164, 170, 178, 205, 212, 265, 272, 328, 340, 356, 410, 424, 445, 530, 656, 680, 697, 712, 820, 848, 890, 901, 1060, 1360, 1394, 1424, 1513, 1640, 1780, 1802, 2120, 2173, 2788, 3026, 3280, 3485, 3560, 3604, 3649, 4240, 4346, 4505, 4717, 5576, 6052, 6970, 7120, 7208, 7298, 7565, 8692, 9010, 9434, 10865, 11152, 12104, 13940, 14416, 14596, 15130, 17384, 18020, 18245, 18868, 21730, 23585, 24208, 27880, 29192, 30260, 34768, 36040, 36490, 36941, 37736, 43460, 47170, 55760, 58384, 60520, 62033, 72080, 72980, 73882, 75472, 80189, 86920, 94340, 121040, 124066, 145960, 147764, 160378, 173840, 184705, 188680, 193397, 248132, 291920, 295528, 310165, 320756, 369410, 377360, 386794, 400945, 496264, 591056, 620330, 641512, 738820, 773588, 801890, 966985, 992528, 1240660, 1283024, 1477640, 1547176, 1603780, 1933970, 2481320, 2955280, 3094352, 3207560, 3287749, 3867940, 4962640, 6415120, 6575498, 7735880, 13150996, 15471760, 16438745, 26301992, 32877490, 52603984, 65754980, 131509960, 263019920]

約数ペア:

[(1, 263019920), (2, 131509960), (4, 65754980), (5, 52603984), (8, 32877490), (10, 26301992), (16, 16438745), (17, 15471760), (20, 13150996), (34, 7735880), (40, 6575498), (41, 6415120), (53, 4962640), (68, 3867940), (80, 3287749), (82, 3207560), (85, 3094352), (89, 2955280), (106, 2481320), (136, 1933970), (164, 1603780), (170, 1547176), (178, 1477640), (205, 1283024), (212, 1240660), (265, 992528), (272, 966985), (328, 801890), (340, 773588), (356, 738820), (410, 641512), (424, 620330), (445, 591056), (530, 496264), (656, 400945), (680, 386794), (697, 377360), (712, 369410), (820, 320756), (848, 310165), (890, 295528), (901, 291920), (1060, 248132), (1360, 193397), (1394, 188680), (1424, 184705), (1513, 173840), (1640, 160378), (1780, 147764), (1802, 145960), (2120, 124066), (2173, 121040), (2788, 94340), (3026, 86920), (3280, 80189), (3485, 75472), (3560, 73882), (3604, 72980), (3649, 72080), (4240, 62033), (4346, 60520), (4505, 58384), (4717, 55760), (5576, 47170), (6052, 43460), (6970, 37736), (7120, 36941), (7208, 36490), (7298, 36040), (7565, 34768), (8692, 30260), (9010, 29192), (9434, 27880), (10865, 24208), (11152, 23585), (12104, 21730), (13940, 18868), (14416, 18245), (14596, 18020), (15130, 17384)]