26228480

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:713

約数の個数: 72

約数和(自身を含む): 64950144

約数和(自身を除く): 38721664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 661, 992, 1240, 1280, 1322, 1984, 2480, 2644, 3305, 3968, 4960, 5288, 6610, 7936, 9920, 10576, 13220, 19840, 20491, 21152, 26440, 39680, 40982, 42304, 52880, 81964, 84608, 102455, 105760, 163928, 169216, 204910, 211520, 327856, 409820, 423040, 655712, 819640, 846080, 1311424, 1639280, 2622848, 3278560, 5245696, 6557120, 13114240, 26228480]

約数ペア:

[(1, 26228480), (2, 13114240), (4, 6557120), (5, 5245696), (8, 3278560), (10, 2622848), (16, 1639280), (20, 1311424), (31, 846080), (32, 819640), (40, 655712), (62, 423040), (64, 409820), (80, 327856), (124, 211520), (128, 204910), (155, 169216), (160, 163928), (248, 105760), (256, 102455), (310, 84608), (320, 81964), (496, 52880), (620, 42304), (640, 40982), (661, 39680), (992, 26440), (1240, 21152), (1280, 20491), (1322, 19840), (1984, 13220), (2480, 10576), (2644, 9920), (3305, 7936), (3968, 6610), (4960, 5288)]