28668800

素因数分解:

$2^7\times 5^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:89

約数の個数: 144

約数和(自身を含む): 77658720

約数和(自身を除く): 48989920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 31, 32, 34, 40, 50, 62, 64, 68, 80, 85, 100, 124, 128, 136, 155, 160, 170, 200, 248, 272, 289, 310, 320, 340, 400, 425, 496, 527, 544, 578, 620, 640, 680, 775, 800, 850, 992, 1054, 1088, 1156, 1240, 1360, 1445, 1550, 1600, 1700, 1984, 2108, 2176, 2312, 2480, 2635, 2720, 2890, 3100, 3200, 3400, 3968, 4216, 4624, 4960, 5270, 5440, 5780, 6200, 6800, 7225, 8432, 8959, 9248, 9920, 10540, 10880, 11560, 12400, 13175, 13600, 14450, 16864, 17918, 18496, 19840, 21080, 23120, 24800, 26350, 27200, 28900, 33728, 35836, 36992, 42160, 44795, 46240, 49600, 52700, 54400, 57800, 67456, 71672, 84320, 89590, 92480, 99200, 105400, 115600, 143344, 168640, 179180, 184960, 210800, 223975, 231200, 286688, 337280, 358360, 421600, 447950, 462400, 573376, 716720, 843200, 895900, 924800, 1146752, 1433440, 1686400, 1791800, 2866880, 3583600, 5733760, 7167200, 14334400, 28668800]

約数ペア:

[(1, 28668800), (2, 14334400), (4, 7167200), (5, 5733760), (8, 3583600), (10, 2866880), (16, 1791800), (17, 1686400), (20, 1433440), (25, 1146752), (31, 924800), (32, 895900), (34, 843200), (40, 716720), (50, 573376), (62, 462400), (64, 447950), (68, 421600), (80, 358360), (85, 337280), (100, 286688), (124, 231200), (128, 223975), (136, 210800), (155, 184960), (160, 179180), (170, 168640), (200, 143344), (248, 115600), (272, 105400), (289, 99200), (310, 92480), (320, 89590), (340, 84320), (400, 71672), (425, 67456), (496, 57800), (527, 54400), (544, 52700), (578, 49600), (620, 46240), (640, 44795), (680, 42160), (775, 36992), (800, 35836), (850, 33728), (992, 28900), (1054, 27200), (1088, 26350), (1156, 24800), (1240, 23120), (1360, 21080), (1445, 19840), (1550, 18496), (1600, 17918), (1700, 16864), (1984, 14450), (2108, 13600), (2176, 13175), (2312, 12400), (2480, 11560), (2635, 10880), (2720, 10540), (2890, 9920), (3100, 9248), (3200, 8959), (3400, 8432), (3968, 7225), (4216, 6800), (4624, 6200), (4960, 5780), (5270, 5440)]