42438760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 119750400

約数和(自身を除く): 77311640

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 89, 91, 104, 130, 131, 140, 178, 182, 260, 262, 280, 356, 364, 445, 455, 520, 524, 623, 655, 712, 728, 890, 910, 917, 1048, 1157, 1246, 1310, 1703, 1780, 1820, 1834, 2314, 2492, 2620, 3115, 3406, 3560, 3640, 3668, 4585, 4628, 4984, 5240, 5785, 6230, 6812, 7336, 8099, 8515, 9170, 9256, 11570, 11659, 11921, 12460, 13624, 16198, 17030, 18340, 23140, 23318, 23842, 24920, 32396, 34060, 36680, 40495, 46280, 46636, 47684, 58295, 59605, 64792, 68120, 80990, 81613, 93272, 95368, 116590, 119210, 151567, 161980, 163226, 233180, 238420, 303134, 323960, 326452, 408065, 466360, 476840, 606268, 652904, 757835, 816130, 1060969, 1212536, 1515670, 1632260, 2121938, 3031340, 3264520, 4243876, 5304845, 6062680, 8487752, 10609690, 21219380, 42438760]

約数ペア:

[(1, 42438760), (2, 21219380), (4, 10609690), (5, 8487752), (7, 6062680), (8, 5304845), (10, 4243876), (13, 3264520), (14, 3031340), (20, 2121938), (26, 1632260), (28, 1515670), (35, 1212536), (40, 1060969), (52, 816130), (56, 757835), (65, 652904), (70, 606268), (89, 476840), (91, 466360), (104, 408065), (130, 326452), (131, 323960), (140, 303134), (178, 238420), (182, 233180), (260, 163226), (262, 161980), (280, 151567), (356, 119210), (364, 116590), (445, 95368), (455, 93272), (520, 81613), (524, 80990), (623, 68120), (655, 64792), (712, 59605), (728, 58295), (890, 47684), (910, 46636), (917, 46280), (1048, 40495), (1157, 36680), (1246, 34060), (1310, 32396), (1703, 24920), (1780, 23842), (1820, 23318), (1834, 23140), (2314, 18340), (2492, 17030), (2620, 16198), (3115, 13624), (3406, 12460), (3560, 11921), (3640, 11659), (3668, 11570), (4585, 9256), (4628, 9170), (4984, 8515), (5240, 8099), (5785, 7336), (6230, 6812)]