28174020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{37}}^2$

素因数の和:107

約数の個数: 144

約数和(自身を含む): 94550400

約数和(自身を除く): 66376380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 49, 60, 70, 74, 84, 98, 105, 111, 140, 147, 148, 185, 196, 210, 222, 245, 259, 294, 343, 370, 420, 444, 490, 518, 555, 588, 686, 735, 740, 777, 980, 1029, 1036, 1110, 1295, 1369, 1372, 1470, 1554, 1715, 1813, 2058, 2220, 2590, 2738, 2940, 3108, 3430, 3626, 3885, 4107, 4116, 5145, 5180, 5439, 5476, 6845, 6860, 7252, 7770, 8214, 9065, 9583, 10290, 10878, 12691, 13690, 15540, 16428, 18130, 19166, 20535, 20580, 21756, 25382, 27195, 27380, 28749, 36260, 38073, 38332, 41070, 47915, 50764, 54390, 57498, 63455, 67081, 76146, 82140, 95830, 108780, 114996, 126910, 134162, 143745, 152292, 190365, 191660, 201243, 253820, 268324, 287490, 335405, 380730, 402486, 469567, 574980, 670810, 761460, 804972, 939134, 1006215, 1341620, 1408701, 1878268, 2012430, 2347835, 2817402, 4024860, 4695670, 5634804, 7043505, 9391340, 14087010, 28174020]

約数ペア:

[(1, 28174020), (2, 14087010), (3, 9391340), (4, 7043505), (5, 5634804), (6, 4695670), (7, 4024860), (10, 2817402), (12, 2347835), (14, 2012430), (15, 1878268), (20, 1408701), (21, 1341620), (28, 1006215), (30, 939134), (35, 804972), (37, 761460), (42, 670810), (49, 574980), (60, 469567), (70, 402486), (74, 380730), (84, 335405), (98, 287490), (105, 268324), (111, 253820), (140, 201243), (147, 191660), (148, 190365), (185, 152292), (196, 143745), (210, 134162), (222, 126910), (245, 114996), (259, 108780), (294, 95830), (343, 82140), (370, 76146), (420, 67081), (444, 63455), (490, 57498), (518, 54390), (555, 50764), (588, 47915), (686, 41070), (735, 38332), (740, 38073), (777, 36260), (980, 28749), (1029, 27380), (1036, 27195), (1110, 25382), (1295, 21756), (1369, 20580), (1372, 20535), (1470, 19166), (1554, 18130), (1715, 16428), (1813, 15540), (2058, 13690), (2220, 12691), (2590, 10878), (2738, 10290), (2940, 9583), (3108, 9065), (3430, 8214), (3626, 7770), (3885, 7252), (4107, 6860), (4116, 6845), (5145, 5476), (5180, 5439)]