19355440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{503}}^1$

素因数の和:566

約数の個数: 80

約数和(自身を含む): 49871808

約数和(自身を除く): 30516368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 208, 260, 296, 370, 481, 503, 520, 592, 740, 962, 1006, 1040, 1480, 1924, 2012, 2405, 2515, 2960, 3848, 4024, 4810, 5030, 6539, 7696, 8048, 9620, 10060, 13078, 18611, 19240, 20120, 26156, 32695, 37222, 38480, 40240, 52312, 65390, 74444, 93055, 104624, 130780, 148888, 186110, 241943, 261560, 297776, 372220, 483886, 523120, 744440, 967772, 1209715, 1488880, 1935544, 2419430, 3871088, 4838860, 9677720, 19355440]

約数ペア:

[(1, 19355440), (2, 9677720), (4, 4838860), (5, 3871088), (8, 2419430), (10, 1935544), (13, 1488880), (16, 1209715), (20, 967772), (26, 744440), (37, 523120), (40, 483886), (52, 372220), (65, 297776), (74, 261560), (80, 241943), (104, 186110), (130, 148888), (148, 130780), (185, 104624), (208, 93055), (260, 74444), (296, 65390), (370, 52312), (481, 40240), (503, 38480), (520, 37222), (592, 32695), (740, 26156), (962, 20120), (1006, 19240), (1040, 18611), (1480, 13078), (1924, 10060), (2012, 9620), (2405, 8048), (2515, 7696), (2960, 6539), (3848, 5030), (4024, 4810)]