18780840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4013}}^1$

素因数の和:4043

約数の個数: 96

約数和(自身を含む): 65749320

約数和(自身を除く): 46968480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4013, 4680, 8026, 12039, 16052, 20065, 24078, 32104, 36117, 40130, 48156, 52169, 60195, 72234, 80260, 96312, 104338, 120390, 144468, 156507, 160520, 180585, 208676, 240780, 260845, 288936, 313014, 361170, 417352, 469521, 481560, 521690, 626028, 722340, 782535, 939042, 1043380, 1252056, 1444680, 1565070, 1878084, 2086760, 2347605, 3130140, 3756168, 4695210, 6260280, 9390420, 18780840]

約数ペア:

[(1, 18780840), (2, 9390420), (3, 6260280), (4, 4695210), (5, 3756168), (6, 3130140), (8, 2347605), (9, 2086760), (10, 1878084), (12, 1565070), (13, 1444680), (15, 1252056), (18, 1043380), (20, 939042), (24, 782535), (26, 722340), (30, 626028), (36, 521690), (39, 481560), (40, 469521), (45, 417352), (52, 361170), (60, 313014), (65, 288936), (72, 260845), (78, 240780), (90, 208676), (104, 180585), (117, 160520), (120, 156507), (130, 144468), (156, 120390), (180, 104338), (195, 96312), (234, 80260), (260, 72234), (312, 60195), (360, 52169), (390, 48156), (468, 40130), (520, 36117), (585, 32104), (780, 24078), (936, 20065), (1170, 16052), (1560, 12039), (2340, 8026), (4013, 4680)]