64431640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{571}}^1$

素因数の和:633

約数の個数: 128

約数和(自身を含む): 184504320

約数和(自身を除く): 120072680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 31, 35, 40, 52, 56, 62, 65, 70, 91, 104, 124, 130, 140, 155, 182, 217, 248, 260, 280, 310, 364, 403, 434, 455, 520, 571, 620, 728, 806, 868, 910, 1085, 1142, 1240, 1612, 1736, 1820, 2015, 2170, 2284, 2821, 2855, 3224, 3640, 3997, 4030, 4340, 4568, 5642, 5710, 7423, 7994, 8060, 8680, 11284, 11420, 14105, 14846, 15988, 16120, 17701, 19985, 22568, 22840, 28210, 29692, 31976, 35402, 37115, 39970, 51961, 56420, 59384, 70804, 74230, 79940, 88505, 103922, 112840, 123907, 141608, 148460, 159880, 177010, 207844, 230113, 247814, 259805, 296920, 354020, 415688, 460226, 495628, 519610, 619535, 708040, 920452, 991256, 1039220, 1150565, 1239070, 1610791, 1840904, 2078440, 2301130, 2478140, 3221582, 4602260, 4956280, 6443164, 8053955, 9204520, 12886328, 16107910, 32215820, 64431640]

約数ペア:

[(1, 64431640), (2, 32215820), (4, 16107910), (5, 12886328), (7, 9204520), (8, 8053955), (10, 6443164), (13, 4956280), (14, 4602260), (20, 3221582), (26, 2478140), (28, 2301130), (31, 2078440), (35, 1840904), (40, 1610791), (52, 1239070), (56, 1150565), (62, 1039220), (65, 991256), (70, 920452), (91, 708040), (104, 619535), (124, 519610), (130, 495628), (140, 460226), (155, 415688), (182, 354020), (217, 296920), (248, 259805), (260, 247814), (280, 230113), (310, 207844), (364, 177010), (403, 159880), (434, 148460), (455, 141608), (520, 123907), (571, 112840), (620, 103922), (728, 88505), (806, 79940), (868, 74230), (910, 70804), (1085, 59384), (1142, 56420), (1240, 51961), (1612, 39970), (1736, 37115), (1820, 35402), (2015, 31976), (2170, 29692), (2284, 28210), (2821, 22840), (2855, 22568), (3224, 19985), (3640, 17701), (3997, 16120), (4030, 15988), (4340, 14846), (4568, 14105), (5642, 11420), (5710, 11284), (7423, 8680), (7994, 8060)]