19944470

素因数分解:

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

素因数の和:166

約数の個数: 96

約数和(自身を含む): 46884096

約数和(自身を除く): 26939626

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 31, 35, 49, 62, 65, 70, 91, 98, 101, 130, 155, 182, 202, 217, 245, 310, 403, 434, 455, 490, 505, 637, 707, 806, 910, 1010, 1085, 1274, 1313, 1414, 1519, 2015, 2170, 2626, 2821, 3038, 3131, 3185, 3535, 4030, 4949, 5642, 6262, 6370, 6565, 7070, 7595, 9191, 9898, 13130, 14105, 15190, 15655, 18382, 19747, 21917, 24745, 28210, 31310, 39494, 40703, 43834, 45955, 49490, 64337, 81406, 91910, 98735, 109585, 128674, 153419, 197470, 203515, 219170, 284921, 306838, 321685, 407030, 569842, 643370, 767095, 1424605, 1534190, 1994447, 2849210, 3988894, 9972235, 19944470]

約数ペア:

[(1, 19944470), (2, 9972235), (5, 3988894), (7, 2849210), (10, 1994447), (13, 1534190), (14, 1424605), (26, 767095), (31, 643370), (35, 569842), (49, 407030), (62, 321685), (65, 306838), (70, 284921), (91, 219170), (98, 203515), (101, 197470), (130, 153419), (155, 128674), (182, 109585), (202, 98735), (217, 91910), (245, 81406), (310, 64337), (403, 49490), (434, 45955), (455, 43834), (490, 40703), (505, 39494), (637, 31310), (707, 28210), (806, 24745), (910, 21917), (1010, 19747), (1085, 18382), (1274, 15655), (1313, 15190), (1414, 14105), (1519, 13130), (2015, 9898), (2170, 9191), (2626, 7595), (2821, 7070), (3038, 6565), (3131, 6370), (3185, 6262), (3535, 5642), (4030, 4949)]