72015320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:277

約数の個数: 128

約数和(自身を含む): 189604800

約数和(自身を除く): 117589480

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 37, 38, 40, 52, 65, 74, 76, 95, 104, 130, 148, 152, 185, 190, 197, 247, 260, 296, 370, 380, 394, 481, 494, 520, 703, 740, 760, 788, 962, 985, 988, 1235, 1406, 1480, 1576, 1924, 1970, 1976, 2405, 2470, 2561, 2812, 3515, 3743, 3848, 3940, 4810, 4940, 5122, 5624, 7030, 7289, 7486, 7880, 9139, 9620, 9880, 10244, 12805, 14060, 14578, 14972, 18278, 18715, 19240, 20488, 25610, 28120, 29156, 29944, 36445, 36556, 37430, 45695, 48659, 51220, 58312, 72890, 73112, 74860, 91390, 94757, 97318, 102440, 138491, 145780, 149720, 182780, 189514, 194636, 243295, 276982, 291560, 365560, 379028, 389272, 473785, 486590, 553964, 692455, 758056, 947570, 973180, 1107928, 1384910, 1800383, 1895140, 1946360, 2769820, 3600766, 3790280, 5539640, 7201532, 9001915, 14403064, 18003830, 36007660, 72015320]

約数ペア:

[(1, 72015320), (2, 36007660), (4, 18003830), (5, 14403064), (8, 9001915), (10, 7201532), (13, 5539640), (19, 3790280), (20, 3600766), (26, 2769820), (37, 1946360), (38, 1895140), (40, 1800383), (52, 1384910), (65, 1107928), (74, 973180), (76, 947570), (95, 758056), (104, 692455), (130, 553964), (148, 486590), (152, 473785), (185, 389272), (190, 379028), (197, 365560), (247, 291560), (260, 276982), (296, 243295), (370, 194636), (380, 189514), (394, 182780), (481, 149720), (494, 145780), (520, 138491), (703, 102440), (740, 97318), (760, 94757), (788, 91390), (962, 74860), (985, 73112), (988, 72890), (1235, 58312), (1406, 51220), (1480, 48659), (1576, 45695), (1924, 37430), (1970, 36556), (1976, 36445), (2405, 29944), (2470, 29156), (2561, 28120), (2812, 25610), (3515, 20488), (3743, 19240), (3848, 18715), (3940, 18278), (4810, 14972), (4940, 14578), (5122, 14060), (5624, 12805), (7030, 10244), (7289, 9880), (7486, 9620), (7880, 9139)]