123678940

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11}}^2\times {\mathrm{149}}^1$

素因数の和:201

約数の個数: 144

約数和(自身を含む): 335160000

約数和(自身を除く): 211481060

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 121, 140, 149, 154, 196, 220, 242, 245, 298, 308, 343, 385, 484, 490, 539, 596, 605, 686, 745, 770, 847, 980, 1043, 1078, 1210, 1372, 1490, 1540, 1639, 1694, 1715, 2086, 2156, 2420, 2695, 2980, 3278, 3388, 3430, 3773, 4172, 4235, 5215, 5390, 5929, 6556, 6860, 7301, 7546, 8195, 8470, 10430, 10780, 11473, 11858, 14602, 15092, 16390, 16940, 18029, 18865, 20860, 22946, 23716, 29204, 29645, 32780, 36058, 36505, 37730, 41503, 45892, 51107, 57365, 59290, 72116, 73010, 75460, 80311, 83006, 90145, 102214, 114730, 118580, 126203, 146020, 160622, 166012, 180290, 204428, 207515, 229460, 252406, 255535, 321244, 360580, 401555, 415030, 504812, 511070, 562177, 631015, 803110, 830060, 883421, 1022140, 1124354, 1262030, 1606220, 1766842, 2248708, 2524060, 2810885, 3533684, 4417105, 5621770, 6183947, 8834210, 11243540, 12367894, 17668420, 24735788, 30919735, 61839470, 123678940]

約数ペア:

[(1, 123678940), (2, 61839470), (4, 30919735), (5, 24735788), (7, 17668420), (10, 12367894), (11, 11243540), (14, 8834210), (20, 6183947), (22, 5621770), (28, 4417105), (35, 3533684), (44, 2810885), (49, 2524060), (55, 2248708), (70, 1766842), (77, 1606220), (98, 1262030), (110, 1124354), (121, 1022140), (140, 883421), (149, 830060), (154, 803110), (196, 631015), (220, 562177), (242, 511070), (245, 504812), (298, 415030), (308, 401555), (343, 360580), (385, 321244), (484, 255535), (490, 252406), (539, 229460), (596, 207515), (605, 204428), (686, 180290), (745, 166012), (770, 160622), (847, 146020), (980, 126203), (1043, 118580), (1078, 114730), (1210, 102214), (1372, 90145), (1490, 83006), (1540, 80311), (1639, 75460), (1694, 73010), (1715, 72116), (2086, 59290), (2156, 57365), (2420, 51107), (2695, 45892), (2980, 41503), (3278, 37730), (3388, 36505), (3430, 36058), (3773, 32780), (4172, 29645), (4235, 29204), (5215, 23716), (5390, 22946), (5929, 20860), (6556, 18865), (6860, 18029), (7301, 16940), (7546, 16390), (8195, 15092), (8470, 14602), (10430, 11858), (10780, 11473)]