217212940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2207}}^1$

素因数の和:2279

約数の個数: 96

約数和(自身を含む): 563834880

約数和(自身を除く): 346621940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 37, 38, 70, 74, 76, 95, 133, 140, 148, 185, 190, 259, 266, 370, 380, 518, 532, 665, 703, 740, 1036, 1295, 1330, 1406, 2207, 2590, 2660, 2812, 3515, 4414, 4921, 5180, 7030, 8828, 9842, 11035, 14060, 15449, 19684, 22070, 24605, 30898, 41933, 44140, 49210, 61796, 77245, 81659, 83866, 98420, 154490, 163318, 167732, 209665, 293531, 308980, 326636, 408295, 419330, 571613, 587062, 816590, 838660, 1143226, 1174124, 1467655, 1551521, 1633180, 2286452, 2858065, 2935310, 3103042, 5716130, 5870620, 6206084, 7757605, 10860647, 11432260, 15515210, 21721294, 31030420, 43442588, 54303235, 108606470, 217212940]

約数ペア:

[(1, 217212940), (2, 108606470), (4, 54303235), (5, 43442588), (7, 31030420), (10, 21721294), (14, 15515210), (19, 11432260), (20, 10860647), (28, 7757605), (35, 6206084), (37, 5870620), (38, 5716130), (70, 3103042), (74, 2935310), (76, 2858065), (95, 2286452), (133, 1633180), (140, 1551521), (148, 1467655), (185, 1174124), (190, 1143226), (259, 838660), (266, 816590), (370, 587062), (380, 571613), (518, 419330), (532, 408295), (665, 326636), (703, 308980), (740, 293531), (1036, 209665), (1295, 167732), (1330, 163318), (1406, 154490), (2207, 98420), (2590, 83866), (2660, 81659), (2812, 77245), (3515, 61796), (4414, 49210), (4921, 44140), (5180, 41933), (7030, 30898), (8828, 24605), (9842, 22070), (11035, 19684), (14060, 15449)]