40632640

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:240

約数の個数: 112

約数和(自身を含む): 104973120

約数和(自身を除く): 64340480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 41, 64, 76, 80, 82, 95, 152, 160, 163, 164, 190, 205, 304, 320, 326, 328, 380, 410, 608, 652, 656, 760, 779, 815, 820, 1216, 1304, 1312, 1520, 1558, 1630, 1640, 2608, 2624, 3040, 3097, 3116, 3260, 3280, 3895, 5216, 6080, 6194, 6232, 6520, 6560, 6683, 7790, 10432, 12388, 12464, 13040, 13120, 13366, 15485, 15580, 24776, 24928, 26080, 26732, 30970, 31160, 33415, 49552, 49856, 52160, 53464, 61940, 62320, 66830, 99104, 106928, 123880, 124640, 126977, 133660, 198208, 213856, 247760, 249280, 253954, 267320, 427712, 495520, 507908, 534640, 634885, 991040, 1015816, 1069280, 1269770, 2031632, 2138560, 2539540, 4063264, 5079080, 8126528, 10158160, 20316320, 40632640]

約数ペア:

[(1, 40632640), (2, 20316320), (4, 10158160), (5, 8126528), (8, 5079080), (10, 4063264), (16, 2539540), (19, 2138560), (20, 2031632), (32, 1269770), (38, 1069280), (40, 1015816), (41, 991040), (64, 634885), (76, 534640), (80, 507908), (82, 495520), (95, 427712), (152, 267320), (160, 253954), (163, 249280), (164, 247760), (190, 213856), (205, 198208), (304, 133660), (320, 126977), (326, 124640), (328, 123880), (380, 106928), (410, 99104), (608, 66830), (652, 62320), (656, 61940), (760, 53464), (779, 52160), (815, 49856), (820, 49552), (1216, 33415), (1304, 31160), (1312, 30970), (1520, 26732), (1558, 26080), (1630, 24928), (1640, 24776), (2608, 15580), (2624, 15485), (3040, 13366), (3097, 13120), (3116, 13040), (3260, 12464), (3280, 12388), (3895, 10432), (5216, 7790), (6080, 6683), (6194, 6560), (6232, 6520)]