264865280

素因数分解:

$2^9\times 5^1\times {\mathrm{157}}^1\times {\mathrm{659}}^1$

素因数の和:839

約数の個数: 80

約数和(自身を含む): 640070640

約数和(自身を除く): 375205360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 512, 628, 640, 659, 785, 1256, 1280, 1318, 1570, 2512, 2560, 2636, 3140, 3295, 5024, 5272, 6280, 6590, 10048, 10544, 12560, 13180, 20096, 21088, 25120, 26360, 40192, 42176, 50240, 52720, 80384, 84352, 100480, 103463, 105440, 168704, 200960, 206926, 210880, 337408, 401920, 413852, 421760, 517315, 827704, 843520, 1034630, 1655408, 1687040, 2069260, 3310816, 4138520, 6621632, 8277040, 13243264, 16554080, 26486528, 33108160, 52973056, 66216320, 132432640, 264865280]

約数ペア:

[(1, 264865280), (2, 132432640), (4, 66216320), (5, 52973056), (8, 33108160), (10, 26486528), (16, 16554080), (20, 13243264), (32, 8277040), (40, 6621632), (64, 4138520), (80, 3310816), (128, 2069260), (157, 1687040), (160, 1655408), (256, 1034630), (314, 843520), (320, 827704), (512, 517315), (628, 421760), (640, 413852), (659, 401920), (785, 337408), (1256, 210880), (1280, 206926), (1318, 200960), (1570, 168704), (2512, 105440), (2560, 103463), (2636, 100480), (3140, 84352), (3295, 80384), (5024, 52720), (5272, 50240), (6280, 42176), (6590, 40192), (10048, 26360), (10544, 25120), (12560, 21088), (13180, 20096)]