1381120

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 3605616

約数和(自身を除く): 2224496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 83, 104, 128, 130, 160, 166, 208, 256, 260, 320, 332, 415, 416, 520, 640, 664, 830, 832, 1040, 1079, 1280, 1328, 1660, 1664, 2080, 2158, 2656, 3320, 3328, 4160, 4316, 5312, 5395, 6640, 8320, 8632, 10624, 10790, 13280, 16640, 17264, 21248, 21580, 26560, 34528, 43160, 53120, 69056, 86320, 106240, 138112, 172640, 276224, 345280, 690560, 1381120]

約数ペア:

[(1, 1381120), (2, 690560), (4, 345280), (5, 276224), (8, 172640), (10, 138112), (13, 106240), (16, 86320), (20, 69056), (26, 53120), (32, 43160), (40, 34528), (52, 26560), (64, 21580), (65, 21248), (80, 17264), (83, 16640), (104, 13280), (128, 10790), (130, 10624), (160, 8632), (166, 8320), (208, 6640), (256, 5395), (260, 5312), (320, 4316), (332, 4160), (415, 3328), (416, 3320), (520, 2656), (640, 2158), (664, 2080), (830, 1664), (832, 1660), (1040, 1328), (1079, 1280)]