204078140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:520

約数の個数: 96

約数和(自身を含む): 508032000

約数和(自身を除く): 303953860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 71, 98, 140, 142, 196, 245, 284, 343, 355, 419, 490, 497, 686, 710, 838, 980, 994, 1372, 1420, 1676, 1715, 1988, 2095, 2485, 2933, 3430, 3479, 4190, 4970, 5866, 6860, 6958, 8380, 9940, 11732, 13916, 14665, 17395, 20531, 24353, 29330, 29749, 34790, 41062, 48706, 58660, 59498, 69580, 82124, 97412, 102655, 118996, 121765, 143717, 148745, 205310, 208243, 243530, 287434, 297490, 410620, 416486, 487060, 574868, 594980, 718585, 832972, 1041215, 1437170, 1457701, 2082430, 2874340, 2915402, 4164860, 5830804, 7288505, 10203907, 14577010, 20407814, 29154020, 40815628, 51019535, 102039070, 204078140]

約数ペア:

[(1, 204078140), (2, 102039070), (4, 51019535), (5, 40815628), (7, 29154020), (10, 20407814), (14, 14577010), (20, 10203907), (28, 7288505), (35, 5830804), (49, 4164860), (70, 2915402), (71, 2874340), (98, 2082430), (140, 1457701), (142, 1437170), (196, 1041215), (245, 832972), (284, 718585), (343, 594980), (355, 574868), (419, 487060), (490, 416486), (497, 410620), (686, 297490), (710, 287434), (838, 243530), (980, 208243), (994, 205310), (1372, 148745), (1420, 143717), (1676, 121765), (1715, 118996), (1988, 102655), (2095, 97412), (2485, 82124), (2933, 69580), (3430, 59498), (3479, 58660), (4190, 48706), (4970, 41062), (5866, 34790), (6860, 29749), (6958, 29330), (8380, 24353), (9940, 20531), (11732, 17395), (13916, 14665)]