27990040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2833}}^1$

素因数の和:2876

約数の個数: 64

約数和(自身を含む): 71416800

約数和(自身を除く): 43426760

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 2833, 4940, 5666, 9880, 11332, 14165, 22664, 28330, 36829, 53827, 56660, 73658, 107654, 113320, 147316, 184145, 215308, 269135, 294632, 368290, 430616, 538270, 699751, 736580, 1076540, 1399502, 1473160, 2153080, 2799004, 3498755, 5598008, 6997510, 13995020, 27990040]

約数ペア:

[(1, 27990040), (2, 13995020), (4, 6997510), (5, 5598008), (8, 3498755), (10, 2799004), (13, 2153080), (19, 1473160), (20, 1399502), (26, 1076540), (38, 736580), (40, 699751), (52, 538270), (65, 430616), (76, 368290), (95, 294632), (104, 269135), (130, 215308), (152, 184145), (190, 147316), (247, 113320), (260, 107654), (380, 73658), (494, 56660), (520, 53827), (760, 36829), (988, 28330), (1235, 22664), (1976, 14165), (2470, 11332), (2833, 9880), (4940, 5666)]