17983980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2039}}^1$

素因数の和:2068

約数の個数: 108

約数和(自身を含む): 63488880

約数和(自身を除く): 45504900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2039, 2205, 2940, 4078, 4410, 6117, 8156, 8820, 10195, 12234, 14273, 18351, 20390, 24468, 28546, 30585, 36702, 40780, 42819, 57092, 61170, 71365, 73404, 85638, 91755, 99911, 122340, 128457, 142730, 171276, 183510, 199822, 214095, 256914, 285460, 299733, 367020, 399644, 428190, 499555, 513828, 599466, 642285, 856380, 899199, 999110, 1198932, 1284570, 1498665, 1798398, 1998220, 2569140, 2997330, 3596796, 4495995, 5994660, 8991990, 17983980]

約数ペア:

[(1, 17983980), (2, 8991990), (3, 5994660), (4, 4495995), (5, 3596796), (6, 2997330), (7, 2569140), (9, 1998220), (10, 1798398), (12, 1498665), (14, 1284570), (15, 1198932), (18, 999110), (20, 899199), (21, 856380), (28, 642285), (30, 599466), (35, 513828), (36, 499555), (42, 428190), (45, 399644), (49, 367020), (60, 299733), (63, 285460), (70, 256914), (84, 214095), (90, 199822), (98, 183510), (105, 171276), (126, 142730), (140, 128457), (147, 122340), (180, 99911), (196, 91755), (210, 85638), (245, 73404), (252, 71365), (294, 61170), (315, 57092), (420, 42819), (441, 40780), (490, 36702), (588, 30585), (630, 28546), (735, 24468), (882, 20390), (980, 18351), (1260, 14273), (1470, 12234), (1764, 10195), (2039, 8820), (2205, 8156), (2940, 6117), (4078, 4410)]