21536960

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1$

素因数の和:178

約数の個数: 112

約数和(自身を含む): 56290464

約数和(自身を除く): 34753504

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 37, 40, 64, 68, 74, 80, 85, 107, 136, 148, 160, 170, 185, 214, 272, 296, 320, 340, 370, 428, 535, 544, 592, 629, 680, 740, 856, 1070, 1088, 1184, 1258, 1360, 1480, 1712, 1819, 2140, 2368, 2516, 2720, 2960, 3145, 3424, 3638, 3959, 4280, 5032, 5440, 5920, 6290, 6848, 7276, 7918, 8560, 9095, 10064, 11840, 12580, 14552, 15836, 17120, 18190, 19795, 20128, 25160, 29104, 31672, 34240, 36380, 39590, 40256, 50320, 58208, 63344, 67303, 72760, 79180, 100640, 116416, 126688, 134606, 145520, 158360, 201280, 253376, 269212, 291040, 316720, 336515, 538424, 582080, 633440, 673030, 1076848, 1266880, 1346060, 2153696, 2692120, 4307392, 5384240, 10768480, 21536960]

約数ペア:

[(1, 21536960), (2, 10768480), (4, 5384240), (5, 4307392), (8, 2692120), (10, 2153696), (16, 1346060), (17, 1266880), (20, 1076848), (32, 673030), (34, 633440), (37, 582080), (40, 538424), (64, 336515), (68, 316720), (74, 291040), (80, 269212), (85, 253376), (107, 201280), (136, 158360), (148, 145520), (160, 134606), (170, 126688), (185, 116416), (214, 100640), (272, 79180), (296, 72760), (320, 67303), (340, 63344), (370, 58208), (428, 50320), (535, 40256), (544, 39590), (592, 36380), (629, 34240), (680, 31672), (740, 29104), (856, 25160), (1070, 20128), (1088, 19795), (1184, 18190), (1258, 17120), (1360, 15836), (1480, 14552), (1712, 12580), (1819, 11840), (2140, 10064), (2368, 9095), (2516, 8560), (2720, 7918), (2960, 7276), (3145, 6848), (3424, 6290), (3638, 5920), (3959, 5440), (4280, 5032)]