2786840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:324

約数の個数: 64

約数和(自身を含む): 7387200

約数和(自身を除く): 4600360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 56, 70, 74, 140, 148, 185, 259, 269, 280, 296, 370, 518, 538, 740, 1036, 1076, 1295, 1345, 1480, 1883, 2072, 2152, 2590, 2690, 3766, 5180, 5380, 7532, 9415, 9953, 10360, 10760, 15064, 18830, 19906, 37660, 39812, 49765, 69671, 75320, 79624, 99530, 139342, 199060, 278684, 348355, 398120, 557368, 696710, 1393420, 2786840]

約数ペア:

[(1, 2786840), (2, 1393420), (4, 696710), (5, 557368), (7, 398120), (8, 348355), (10, 278684), (14, 199060), (20, 139342), (28, 99530), (35, 79624), (37, 75320), (40, 69671), (56, 49765), (70, 39812), (74, 37660), (140, 19906), (148, 18830), (185, 15064), (259, 10760), (269, 10360), (280, 9953), (296, 9415), (370, 7532), (518, 5380), (538, 5180), (740, 3766), (1036, 2690), (1076, 2590), (1295, 2152), (1345, 2072), (1480, 1883)]