1521230720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1571}}^1$

素因数の和:1696

約数の個数: 128

約数和(自身を含む): 3896359200

約数和(自身を除く): 2375128480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 89, 128, 136, 160, 170, 178, 272, 320, 340, 356, 445, 544, 640, 680, 712, 890, 1088, 1360, 1424, 1513, 1571, 1780, 2176, 2720, 2848, 3026, 3142, 3560, 5440, 5696, 6052, 6284, 7120, 7565, 7855, 10880, 11392, 12104, 12568, 14240, 15130, 15710, 24208, 25136, 26707, 28480, 30260, 31420, 48416, 50272, 53414, 56960, 60520, 62840, 96832, 100544, 106828, 121040, 125680, 133535, 139819, 193664, 201088, 213656, 242080, 251360, 267070, 279638, 427312, 484160, 502720, 534140, 559276, 699095, 854624, 968320, 1005440, 1068280, 1118552, 1398190, 1709248, 2136560, 2237104, 2376923, 2796380, 3418496, 4273120, 4474208, 4753846, 5592760, 8546240, 8948416, 9507692, 11185520, 11884615, 17092480, 17896832, 19015384, 22371040, 23769230, 38030768, 44742080, 47538460, 76061536, 89484160, 95076920, 152123072, 190153840, 304246144, 380307680, 760615360, 1521230720]

約数ペア:

[(1, 1521230720), (2, 760615360), (4, 380307680), (5, 304246144), (8, 190153840), (10, 152123072), (16, 95076920), (17, 89484160), (20, 76061536), (32, 47538460), (34, 44742080), (40, 38030768), (64, 23769230), (68, 22371040), (80, 19015384), (85, 17896832), (89, 17092480), (128, 11884615), (136, 11185520), (160, 9507692), (170, 8948416), (178, 8546240), (272, 5592760), (320, 4753846), (340, 4474208), (356, 4273120), (445, 3418496), (544, 2796380), (640, 2376923), (680, 2237104), (712, 2136560), (890, 1709248), (1088, 1398190), (1360, 1118552), (1424, 1068280), (1513, 1005440), (1571, 968320), (1780, 854624), (2176, 699095), (2720, 559276), (2848, 534140), (3026, 502720), (3142, 484160), (3560, 427312), (5440, 279638), (5696, 267070), (6052, 251360), (6284, 242080), (7120, 213656), (7565, 201088), (7855, 193664), (10880, 139819), (11392, 133535), (12104, 125680), (12568, 121040), (14240, 106828), (15130, 100544), (15710, 96832), (24208, 62840), (25136, 60520), (26707, 56960), (28480, 53414), (30260, 50272), (31420, 48416)]