409887940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{809}}^1$

素因数の和:890

約数の個数: 144

約数和(自身を含む): 1116944640

約数和(自身を除く): 707056700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 47, 49, 55, 70, 77, 94, 98, 110, 140, 154, 188, 196, 220, 235, 245, 308, 329, 385, 470, 490, 517, 539, 658, 770, 809, 940, 980, 1034, 1078, 1316, 1540, 1618, 1645, 2068, 2156, 2303, 2585, 2695, 3236, 3290, 3619, 4045, 4606, 5170, 5390, 5663, 6580, 7238, 8090, 8899, 9212, 10340, 10780, 11326, 11515, 14476, 16180, 17798, 18095, 22652, 23030, 25333, 28315, 35596, 36190, 38023, 39641, 44495, 46060, 50666, 56630, 62293, 72380, 76046, 79282, 88990, 101332, 113260, 124586, 126665, 152092, 158564, 177980, 190115, 198205, 249172, 253330, 266161, 311465, 380230, 396410, 418253, 436051, 506660, 532322, 622930, 760460, 792820, 836506, 872102, 1064644, 1245860, 1330805, 1673012, 1744204, 1863127, 2091265, 2180255, 2661610, 2927771, 3726254, 4182530, 4360510, 5323220, 5855542, 7452508, 8365060, 8721020, 9315635, 11711084, 14638855, 18631270, 20494397, 29277710, 37262540, 40988794, 58555420, 81977588, 102471985, 204943970, 409887940]

約数ペア:

[(1, 409887940), (2, 204943970), (4, 102471985), (5, 81977588), (7, 58555420), (10, 40988794), (11, 37262540), (14, 29277710), (20, 20494397), (22, 18631270), (28, 14638855), (35, 11711084), (44, 9315635), (47, 8721020), (49, 8365060), (55, 7452508), (70, 5855542), (77, 5323220), (94, 4360510), (98, 4182530), (110, 3726254), (140, 2927771), (154, 2661610), (188, 2180255), (196, 2091265), (220, 1863127), (235, 1744204), (245, 1673012), (308, 1330805), (329, 1245860), (385, 1064644), (470, 872102), (490, 836506), (517, 792820), (539, 760460), (658, 622930), (770, 532322), (809, 506660), (940, 436051), (980, 418253), (1034, 396410), (1078, 380230), (1316, 311465), (1540, 266161), (1618, 253330), (1645, 249172), (2068, 198205), (2156, 190115), (2303, 177980), (2585, 158564), (2695, 152092), (3236, 126665), (3290, 124586), (3619, 113260), (4045, 101332), (4606, 88990), (5170, 79282), (5390, 76046), (5663, 72380), (6580, 62293), (7238, 56630), (8090, 50666), (8899, 46060), (9212, 44495), (10340, 39641), (10780, 38023), (11326, 36190), (11515, 35596), (14476, 28315), (16180, 25333), (17798, 23030), (18095, 22652)]