78814840

素因数分解:

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

素因数の和:257

約数の個数: 96

約数和(自身を含む): 195663600

約数和(自身を除く): 116848760

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 89, 104, 130, 131, 169, 178, 260, 262, 338, 356, 445, 520, 524, 655, 676, 712, 845, 890, 1048, 1157, 1310, 1352, 1690, 1703, 1780, 2314, 2620, 3380, 3406, 3560, 4628, 5240, 5785, 6760, 6812, 8515, 9256, 11570, 11659, 13624, 15041, 17030, 22139, 23140, 23318, 30082, 34060, 44278, 46280, 46636, 58295, 60164, 68120, 75205, 88556, 93272, 110695, 116590, 120328, 150410, 151567, 177112, 221390, 233180, 300820, 303134, 442780, 466360, 601640, 606268, 757835, 885560, 1212536, 1515670, 1970371, 3031340, 3940742, 6062680, 7881484, 9851855, 15762968, 19703710, 39407420, 78814840]

約数ペア:

[(1, 78814840), (2, 39407420), (4, 19703710), (5, 15762968), (8, 9851855), (10, 7881484), (13, 6062680), (20, 3940742), (26, 3031340), (40, 1970371), (52, 1515670), (65, 1212536), (89, 885560), (104, 757835), (130, 606268), (131, 601640), (169, 466360), (178, 442780), (260, 303134), (262, 300820), (338, 233180), (356, 221390), (445, 177112), (520, 151567), (524, 150410), (655, 120328), (676, 116590), (712, 110695), (845, 93272), (890, 88556), (1048, 75205), (1157, 68120), (1310, 60164), (1352, 58295), (1690, 46636), (1703, 46280), (1780, 44278), (2314, 34060), (2620, 30082), (3380, 23318), (3406, 23140), (3560, 22139), (4628, 17030), (5240, 15041), (5785, 13624), (6760, 11659), (6812, 11570), (8515, 9256)]