38807560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1102

約数の個数: 64

約数和(自身を含む): 96422400

約数和(自身を除く): 57614840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 356, 440, 445, 712, 890, 979, 991, 1780, 1958, 1982, 3560, 3916, 3964, 4895, 4955, 7832, 7928, 9790, 9910, 10901, 19580, 19820, 21802, 39160, 39640, 43604, 54505, 87208, 88199, 109010, 176398, 218020, 352796, 436040, 440995, 705592, 881990, 970189, 1763980, 1940378, 3527960, 3880756, 4850945, 7761512, 9701890, 19403780, 38807560]

約数ペア:

[(1, 38807560), (2, 19403780), (4, 9701890), (5, 7761512), (8, 4850945), (10, 3880756), (11, 3527960), (20, 1940378), (22, 1763980), (40, 970189), (44, 881990), (55, 705592), (88, 440995), (89, 436040), (110, 352796), (178, 218020), (220, 176398), (356, 109010), (440, 88199), (445, 87208), (712, 54505), (890, 43604), (979, 39640), (991, 39160), (1780, 21802), (1958, 19820), (1982, 19580), (3560, 10901), (3916, 9910), (3964, 9790), (4895, 7928), (4955, 7832)]