788897720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:505

約数の個数: 128

約数和(自身を含む): 1984530240

約数和(自身を除く): 1195632520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 131, 148, 185, 260, 262, 296, 313, 370, 481, 520, 524, 626, 655, 740, 962, 1048, 1252, 1310, 1480, 1565, 1703, 1924, 2405, 2504, 2620, 3130, 3406, 3848, 4069, 4810, 4847, 5240, 6260, 6812, 8138, 8515, 9620, 9694, 11581, 12520, 13624, 16276, 17030, 19240, 19388, 20345, 23162, 24235, 32552, 34060, 38776, 40690, 41003, 46324, 48470, 57905, 63011, 68120, 81380, 82006, 92648, 96940, 115810, 126022, 150553, 162760, 164012, 193880, 205015, 231620, 252044, 301106, 315055, 328024, 410030, 463240, 504088, 533039, 602212, 630110, 752765, 820060, 1066078, 1204424, 1260220, 1505530, 1517111, 1640120, 2132156, 2520440, 2665195, 3011060, 3034222, 4264312, 5330390, 6022120, 6068444, 7585555, 10660780, 12136888, 15171110, 19722443, 21321560, 30342220, 39444886, 60684440, 78889772, 98612215, 157779544, 197224430, 394448860, 788897720]

約数ペア:

[(1, 788897720), (2, 394448860), (4, 197224430), (5, 157779544), (8, 98612215), (10, 78889772), (13, 60684440), (20, 39444886), (26, 30342220), (37, 21321560), (40, 19722443), (52, 15171110), (65, 12136888), (74, 10660780), (104, 7585555), (130, 6068444), (131, 6022120), (148, 5330390), (185, 4264312), (260, 3034222), (262, 3011060), (296, 2665195), (313, 2520440), (370, 2132156), (481, 1640120), (520, 1517111), (524, 1505530), (626, 1260220), (655, 1204424), (740, 1066078), (962, 820060), (1048, 752765), (1252, 630110), (1310, 602212), (1480, 533039), (1565, 504088), (1703, 463240), (1924, 410030), (2405, 328024), (2504, 315055), (2620, 301106), (3130, 252044), (3406, 231620), (3848, 205015), (4069, 193880), (4810, 164012), (4847, 162760), (5240, 150553), (6260, 126022), (6812, 115810), (8138, 96940), (8515, 92648), (9620, 82006), (9694, 81380), (11581, 68120), (12520, 63011), (13624, 57905), (16276, 48470), (17030, 46324), (19240, 41003), (19388, 40690), (20345, 38776), (23162, 34060), (24235, 32552)]