220757600

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:605

約数の個数: 144

約数和(自身を含む): 624960000

約数和(自身を除く): 404202400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 79, 80, 100, 112, 140, 158, 160, 175, 200, 224, 280, 316, 350, 395, 400, 499, 553, 560, 632, 700, 790, 800, 998, 1106, 1120, 1264, 1400, 1580, 1975, 1996, 2212, 2495, 2528, 2765, 2800, 3160, 3493, 3950, 3992, 4424, 4990, 5530, 5600, 6320, 6986, 7900, 7984, 8848, 9980, 11060, 12475, 12640, 13825, 13972, 15800, 15968, 17465, 17696, 19960, 22120, 24950, 27650, 27944, 31600, 34930, 39421, 39920, 44240, 49900, 55300, 55888, 63200, 69860, 78842, 79840, 87325, 88480, 99800, 110600, 111776, 139720, 157684, 174650, 197105, 199600, 221200, 275947, 279440, 315368, 349300, 394210, 399200, 442400, 551894, 558880, 630736, 698600, 788420, 985525, 1103788, 1261472, 1379735, 1397200, 1576840, 1971050, 2207576, 2759470, 2794400, 3153680, 3942100, 4415152, 5518940, 6307360, 6898675, 7884200, 8830304, 11037880, 13797350, 15768400, 22075760, 27594700, 31536800, 44151520, 55189400, 110378800, 220757600]

約数ペア:

[(1, 220757600), (2, 110378800), (4, 55189400), (5, 44151520), (7, 31536800), (8, 27594700), (10, 22075760), (14, 15768400), (16, 13797350), (20, 11037880), (25, 8830304), (28, 7884200), (32, 6898675), (35, 6307360), (40, 5518940), (50, 4415152), (56, 3942100), (70, 3153680), (79, 2794400), (80, 2759470), (100, 2207576), (112, 1971050), (140, 1576840), (158, 1397200), (160, 1379735), (175, 1261472), (200, 1103788), (224, 985525), (280, 788420), (316, 698600), (350, 630736), (395, 558880), (400, 551894), (499, 442400), (553, 399200), (560, 394210), (632, 349300), (700, 315368), (790, 279440), (800, 275947), (998, 221200), (1106, 199600), (1120, 197105), (1264, 174650), (1400, 157684), (1580, 139720), (1975, 111776), (1996, 110600), (2212, 99800), (2495, 88480), (2528, 87325), (2765, 79840), (2800, 78842), (3160, 69860), (3493, 63200), (3950, 55888), (3992, 55300), (4424, 49900), (4990, 44240), (5530, 39920), (5600, 39421), (6320, 34930), (6986, 31600), (7900, 27944), (7984, 27650), (8848, 24950), (9980, 22120), (11060, 19960), (12475, 17696), (12640, 17465), (13825, 15968), (13972, 15800)]