39888940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:168

約数の個数: 144

約数和(自身を含む): 109396224

約数和(自身を除く): 69507284

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 31, 35, 49, 52, 62, 65, 70, 91, 98, 101, 124, 130, 140, 155, 182, 196, 202, 217, 245, 260, 310, 364, 403, 404, 434, 455, 490, 505, 620, 637, 707, 806, 868, 910, 980, 1010, 1085, 1274, 1313, 1414, 1519, 1612, 1820, 2015, 2020, 2170, 2548, 2626, 2821, 2828, 3038, 3131, 3185, 3535, 4030, 4340, 4949, 5252, 5642, 6076, 6262, 6370, 6565, 7070, 7595, 8060, 9191, 9898, 11284, 12524, 12740, 13130, 14105, 14140, 15190, 15655, 18382, 19747, 19796, 21917, 24745, 26260, 28210, 30380, 31310, 36764, 39494, 40703, 43834, 45955, 49490, 56420, 62620, 64337, 78988, 81406, 87668, 91910, 98735, 98980, 109585, 128674, 153419, 162812, 183820, 197470, 203515, 219170, 257348, 284921, 306838, 321685, 394940, 407030, 438340, 569842, 613676, 643370, 767095, 814060, 1139684, 1286740, 1424605, 1534190, 1994447, 2849210, 3068380, 3988894, 5698420, 7977788, 9972235, 19944470, 39888940]

約数ペア:

[(1, 39888940), (2, 19944470), (4, 9972235), (5, 7977788), (7, 5698420), (10, 3988894), (13, 3068380), (14, 2849210), (20, 1994447), (26, 1534190), (28, 1424605), (31, 1286740), (35, 1139684), (49, 814060), (52, 767095), (62, 643370), (65, 613676), (70, 569842), (91, 438340), (98, 407030), (101, 394940), (124, 321685), (130, 306838), (140, 284921), (155, 257348), (182, 219170), (196, 203515), (202, 197470), (217, 183820), (245, 162812), (260, 153419), (310, 128674), (364, 109585), (403, 98980), (404, 98735), (434, 91910), (455, 87668), (490, 81406), (505, 78988), (620, 64337), (637, 62620), (707, 56420), (806, 49490), (868, 45955), (910, 43834), (980, 40703), (1010, 39494), (1085, 36764), (1274, 31310), (1313, 30380), (1414, 28210), (1519, 26260), (1612, 24745), (1820, 21917), (2015, 19796), (2020, 19747), (2170, 18382), (2548, 15655), (2626, 15190), (2821, 14140), (2828, 14105), (3038, 13130), (3131, 12740), (3185, 12524), (3535, 11284), (4030, 9898), (4340, 9191), (4949, 8060), (5252, 7595), (5642, 7070), (6076, 6565), (6262, 6370)]