19699440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1039}}^1$

素因数の和:1134

約数の個数: 80

約数和(自身を含む): 61900800

約数和(自身を除く): 42201360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 79, 80, 120, 158, 237, 240, 316, 395, 474, 632, 790, 948, 1039, 1185, 1264, 1580, 1896, 2078, 2370, 3117, 3160, 3792, 4156, 4740, 5195, 6234, 6320, 8312, 9480, 10390, 12468, 15585, 16624, 18960, 20780, 24936, 31170, 41560, 49872, 62340, 82081, 83120, 124680, 164162, 246243, 249360, 328324, 410405, 492486, 656648, 820810, 984972, 1231215, 1313296, 1641620, 1969944, 2462430, 3283240, 3939888, 4924860, 6566480, 9849720, 19699440]

約数ペア:

[(1, 19699440), (2, 9849720), (3, 6566480), (4, 4924860), (5, 3939888), (6, 3283240), (8, 2462430), (10, 1969944), (12, 1641620), (15, 1313296), (16, 1231215), (20, 984972), (24, 820810), (30, 656648), (40, 492486), (48, 410405), (60, 328324), (79, 249360), (80, 246243), (120, 164162), (158, 124680), (237, 83120), (240, 82081), (316, 62340), (395, 49872), (474, 41560), (632, 31170), (790, 24936), (948, 20780), (1039, 18960), (1185, 16624), (1264, 15585), (1580, 12468), (1896, 10390), (2078, 9480), (2370, 8312), (3117, 6320), (3160, 6234), (3792, 5195), (4156, 4740)]