123815320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1\times {\mathrm{311}}^1$

素因数の和:628

約数の個数: 64

約数和(自身を含む): 288100800

約数和(自身を除く): 164285480

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 269, 296, 311, 370, 538, 622, 740, 1076, 1244, 1345, 1480, 1555, 2152, 2488, 2690, 3110, 5380, 6220, 9953, 10760, 11507, 12440, 19906, 23014, 39812, 46028, 49765, 57535, 79624, 83659, 92056, 99530, 115070, 167318, 199060, 230140, 334636, 398120, 418295, 460280, 669272, 836590, 1673180, 3095383, 3346360, 6190766, 12381532, 15476915, 24763064, 30953830, 61907660, 123815320]

約数ペア:

[(1, 123815320), (2, 61907660), (4, 30953830), (5, 24763064), (8, 15476915), (10, 12381532), (20, 6190766), (37, 3346360), (40, 3095383), (74, 1673180), (148, 836590), (185, 669272), (269, 460280), (296, 418295), (311, 398120), (370, 334636), (538, 230140), (622, 199060), (740, 167318), (1076, 115070), (1244, 99530), (1345, 92056), (1480, 83659), (1555, 79624), (2152, 57535), (2488, 49765), (2690, 46028), (3110, 39812), (5380, 23014), (6220, 19906), (9953, 12440), (10760, 11507)]