70511980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:276

約数の個数: 144

約数和(自身を含む): 194890752

約数和(自身を除く): 124378772

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 31, 35, 44, 49, 55, 62, 70, 77, 98, 110, 124, 140, 154, 155, 196, 211, 217, 220, 245, 308, 310, 341, 385, 422, 434, 490, 539, 620, 682, 770, 844, 868, 980, 1055, 1078, 1085, 1364, 1477, 1519, 1540, 1705, 2110, 2156, 2170, 2321, 2387, 2695, 2954, 3038, 3410, 4220, 4340, 4642, 4774, 5390, 5908, 6076, 6541, 6820, 7385, 7595, 9284, 9548, 10339, 10780, 11605, 11935, 13082, 14770, 15190, 16247, 16709, 20678, 23210, 23870, 26164, 29540, 30380, 32494, 32705, 33418, 41356, 45787, 46420, 47740, 51695, 64988, 65410, 66836, 71951, 81235, 83545, 91574, 103390, 113729, 130820, 143902, 162470, 167090, 183148, 206780, 227458, 228935, 287804, 320509, 324940, 334180, 359755, 454916, 457870, 503657, 568645, 641018, 719510, 915740, 1007314, 1137290, 1282036, 1439020, 1602545, 2014628, 2274580, 2518285, 3205090, 3525599, 5036570, 6410180, 7051198, 10073140, 14102396, 17627995, 35255990, 70511980]

約数ペア:

[(1, 70511980), (2, 35255990), (4, 17627995), (5, 14102396), (7, 10073140), (10, 7051198), (11, 6410180), (14, 5036570), (20, 3525599), (22, 3205090), (28, 2518285), (31, 2274580), (35, 2014628), (44, 1602545), (49, 1439020), (55, 1282036), (62, 1137290), (70, 1007314), (77, 915740), (98, 719510), (110, 641018), (124, 568645), (140, 503657), (154, 457870), (155, 454916), (196, 359755), (211, 334180), (217, 324940), (220, 320509), (245, 287804), (308, 228935), (310, 227458), (341, 206780), (385, 183148), (422, 167090), (434, 162470), (490, 143902), (539, 130820), (620, 113729), (682, 103390), (770, 91574), (844, 83545), (868, 81235), (980, 71951), (1055, 66836), (1078, 65410), (1085, 64988), (1364, 51695), (1477, 47740), (1519, 46420), (1540, 45787), (1705, 41356), (2110, 33418), (2156, 32705), (2170, 32494), (2321, 30380), (2387, 29540), (2695, 26164), (2954, 23870), (3038, 23210), (3410, 20678), (4220, 16709), (4340, 16247), (4642, 15190), (4774, 14770), (5390, 13082), (5908, 11935), (6076, 11605), (6541, 10780), (6820, 10339), (7385, 9548), (7595, 9284)]