31942040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:157

約数の個数: 128

約数和(自身を含む): 84369600

約数和(自身を除く): 52427560

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 53, 61, 65, 76, 95, 104, 106, 122, 130, 152, 190, 212, 244, 247, 260, 265, 305, 380, 424, 488, 494, 520, 530, 610, 689, 760, 793, 988, 1007, 1060, 1159, 1220, 1235, 1378, 1586, 1976, 2014, 2120, 2318, 2440, 2470, 2756, 3172, 3233, 3445, 3965, 4028, 4636, 4940, 5035, 5512, 5795, 6344, 6466, 6890, 7930, 8056, 9272, 9880, 10070, 11590, 12932, 13091, 13780, 15067, 15860, 16165, 20140, 23180, 25864, 26182, 27560, 30134, 31720, 32330, 40280, 42029, 46360, 52364, 60268, 61427, 64660, 65455, 75335, 84058, 104728, 120536, 122854, 129320, 130910, 150670, 168116, 210145, 245708, 261820, 301340, 307135, 336232, 420290, 491416, 523640, 602680, 614270, 798551, 840580, 1228540, 1597102, 1681160, 2457080, 3194204, 3992755, 6388408, 7985510, 15971020, 31942040]

約数ペア:

[(1, 31942040), (2, 15971020), (4, 7985510), (5, 6388408), (8, 3992755), (10, 3194204), (13, 2457080), (19, 1681160), (20, 1597102), (26, 1228540), (38, 840580), (40, 798551), (52, 614270), (53, 602680), (61, 523640), (65, 491416), (76, 420290), (95, 336232), (104, 307135), (106, 301340), (122, 261820), (130, 245708), (152, 210145), (190, 168116), (212, 150670), (244, 130910), (247, 129320), (260, 122854), (265, 120536), (305, 104728), (380, 84058), (424, 75335), (488, 65455), (494, 64660), (520, 61427), (530, 60268), (610, 52364), (689, 46360), (760, 42029), (793, 40280), (988, 32330), (1007, 31720), (1060, 30134), (1159, 27560), (1220, 26182), (1235, 25864), (1378, 23180), (1586, 20140), (1976, 16165), (2014, 15860), (2120, 15067), (2318, 13780), (2440, 13091), (2470, 12932), (2756, 11590), (3172, 10070), (3233, 9880), (3445, 9272), (3965, 8056), (4028, 7930), (4636, 6890), (4940, 6466), (5035, 6344), (5512, 5795)]