40906880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1$

素因数の和:446

約数の個数: 128

約数和(自身を含む): 116916480

約数和(自身を除く): 76009600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 280, 320, 322, 368, 397, 448, 460, 560, 640, 644, 736, 794, 805, 896, 920, 1120, 1288, 1472, 1588, 1610, 1840, 1985, 2240, 2576, 2779, 2944, 3176, 3220, 3680, 3970, 4480, 5152, 5558, 6352, 6440, 7360, 7940, 9131, 10304, 11116, 12704, 12880, 13895, 14720, 15880, 18262, 20608, 22232, 25408, 25760, 27790, 31760, 36524, 44464, 45655, 50816, 51520, 55580, 63520, 63917, 73048, 88928, 91310, 103040, 111160, 127040, 127834, 146096, 177856, 182620, 222320, 254080, 255668, 292192, 319585, 355712, 365240, 444640, 511336, 584384, 639170, 730480, 889280, 1022672, 1168768, 1278340, 1460960, 1778560, 2045344, 2556680, 2921920, 4090688, 5113360, 5843840, 8181376, 10226720, 20453440, 40906880]

約数ペア:

[(1, 40906880), (2, 20453440), (4, 10226720), (5, 8181376), (7, 5843840), (8, 5113360), (10, 4090688), (14, 2921920), (16, 2556680), (20, 2045344), (23, 1778560), (28, 1460960), (32, 1278340), (35, 1168768), (40, 1022672), (46, 889280), (56, 730480), (64, 639170), (70, 584384), (80, 511336), (92, 444640), (112, 365240), (115, 355712), (128, 319585), (140, 292192), (160, 255668), (161, 254080), (184, 222320), (224, 182620), (230, 177856), (280, 146096), (320, 127834), (322, 127040), (368, 111160), (397, 103040), (448, 91310), (460, 88928), (560, 73048), (640, 63917), (644, 63520), (736, 55580), (794, 51520), (805, 50816), (896, 45655), (920, 44464), (1120, 36524), (1288, 31760), (1472, 27790), (1588, 25760), (1610, 25408), (1840, 22232), (1985, 20608), (2240, 18262), (2576, 15880), (2779, 14720), (2944, 13895), (3176, 12880), (3220, 12704), (3680, 11116), (3970, 10304), (4480, 9131), (5152, 7940), (5558, 7360), (6352, 6440)]