2891720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:174

約数の個数: 64

約数和(自身を含む): 7197120

約数和(自身を除く): 4305400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 67, 83, 104, 130, 134, 166, 260, 268, 332, 335, 415, 520, 536, 664, 670, 830, 871, 1079, 1340, 1660, 1742, 2158, 2680, 3320, 3484, 4316, 4355, 5395, 5561, 6968, 8632, 8710, 10790, 11122, 17420, 21580, 22244, 27805, 34840, 43160, 44488, 55610, 72293, 111220, 144586, 222440, 289172, 361465, 578344, 722930, 1445860, 2891720]

約数ペア:

[(1, 2891720), (2, 1445860), (4, 722930), (5, 578344), (8, 361465), (10, 289172), (13, 222440), (20, 144586), (26, 111220), (40, 72293), (52, 55610), (65, 44488), (67, 43160), (83, 34840), (104, 27805), (130, 22244), (134, 21580), (166, 17420), (260, 11122), (268, 10790), (332, 8710), (335, 8632), (415, 6968), (520, 5561), (536, 5395), (664, 4355), (670, 4316), (830, 3484), (871, 3320), (1079, 2680), (1340, 2158), (1660, 1742)]