21501600

素因数分解:

$2^5\times 3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{31}}^1$

素因数の和:88

約数の個数: 216

約数和(自身を含む): 76745088

約数和(自身を除く): 55243488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 31, 32, 34, 40, 48, 50, 51, 60, 62, 68, 75, 80, 85, 93, 96, 100, 102, 120, 124, 136, 150, 155, 160, 170, 186, 200, 204, 240, 248, 255, 272, 289, 300, 310, 340, 372, 400, 408, 425, 465, 480, 496, 510, 527, 544, 578, 600, 620, 680, 744, 775, 800, 816, 850, 867, 930, 992, 1020, 1054, 1156, 1200, 1240, 1275, 1360, 1445, 1488, 1550, 1581, 1632, 1700, 1734, 1860, 2040, 2108, 2312, 2325, 2400, 2480, 2550, 2635, 2720, 2890, 2976, 3100, 3162, 3400, 3468, 3720, 4080, 4216, 4335, 4624, 4650, 4960, 5100, 5270, 5780, 6200, 6324, 6800, 6936, 7225, 7440, 7905, 8160, 8432, 8670, 8959, 9248, 9300, 10200, 10540, 11560, 12400, 12648, 13175, 13600, 13872, 14450, 14880, 15810, 16864, 17340, 17918, 18600, 20400, 21080, 21675, 23120, 24800, 25296, 26350, 26877, 27744, 28900, 31620, 34680, 35836, 37200, 39525, 40800, 42160, 43350, 44795, 46240, 50592, 52700, 53754, 57800, 63240, 69360, 71672, 74400, 79050, 84320, 86700, 89590, 105400, 107508, 115600, 126480, 134385, 138720, 143344, 158100, 173400, 179180, 210800, 215016, 223975, 231200, 252960, 268770, 286688, 316200, 346800, 358360, 421600, 430032, 447950, 537540, 632400, 671925, 693600, 716720, 860064, 895900, 1075080, 1264800, 1343850, 1433440, 1791800, 2150160, 2687700, 3583600, 4300320, 5375400, 7167200, 10750800, 21501600]

約数ペア:

[(1, 21501600), (2, 10750800), (3, 7167200), (4, 5375400), (5, 4300320), (6, 3583600), (8, 2687700), (10, 2150160), (12, 1791800), (15, 1433440), (16, 1343850), (17, 1264800), (20, 1075080), (24, 895900), (25, 860064), (30, 716720), (31, 693600), (32, 671925), (34, 632400), (40, 537540), (48, 447950), (50, 430032), (51, 421600), (60, 358360), (62, 346800), (68, 316200), (75, 286688), (80, 268770), (85, 252960), (93, 231200), (96, 223975), (100, 215016), (102, 210800), (120, 179180), (124, 173400), (136, 158100), (150, 143344), (155, 138720), (160, 134385), (170, 126480), (186, 115600), (200, 107508), (204, 105400), (240, 89590), (248, 86700), (255, 84320), (272, 79050), (289, 74400), (300, 71672), (310, 69360), (340, 63240), (372, 57800), (400, 53754), (408, 52700), (425, 50592), (465, 46240), (480, 44795), (496, 43350), (510, 42160), (527, 40800), (544, 39525), (578, 37200), (600, 35836), (620, 34680), (680, 31620), (744, 28900), (775, 27744), (800, 26877), (816, 26350), (850, 25296), (867, 24800), (930, 23120), (992, 21675), (1020, 21080), (1054, 20400), (1156, 18600), (1200, 17918), (1240, 17340), (1275, 16864), (1360, 15810), (1445, 14880), (1488, 14450), (1550, 13872), (1581, 13600), (1632, 13175), (1700, 12648), (1734, 12400), (1860, 11560), (2040, 10540), (2108, 10200), (2312, 9300), (2325, 9248), (2400, 8959), (2480, 8670), (2550, 8432), (2635, 8160), (2720, 7905), (2890, 7440), (2976, 7225), (3100, 6936), (3162, 6800), (3400, 6324), (3468, 6200), (3720, 5780), (4080, 5270), (4216, 5100), (4335, 4960), (4624, 4650)]