31002790

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 72624384

約数和(自身を除く): 41621594

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 31, 35, 49, 62, 65, 70, 91, 98, 130, 155, 157, 182, 217, 245, 310, 314, 403, 434, 455, 490, 637, 785, 806, 910, 1085, 1099, 1274, 1519, 1570, 2015, 2041, 2170, 2198, 2821, 3038, 3185, 4030, 4082, 4867, 5495, 5642, 6370, 7595, 7693, 9734, 10205, 10990, 14105, 14287, 15190, 15386, 19747, 20410, 24335, 28210, 28574, 34069, 38465, 39494, 48670, 63271, 68138, 71435, 76930, 98735, 100009, 126542, 142870, 170345, 197470, 200018, 238483, 316355, 340690, 442897, 476966, 500045, 632710, 885794, 1000090, 1192415, 2214485, 2384830, 3100279, 4428970, 6200558, 15501395, 31002790]

約数ペア:

[(1, 31002790), (2, 15501395), (5, 6200558), (7, 4428970), (10, 3100279), (13, 2384830), (14, 2214485), (26, 1192415), (31, 1000090), (35, 885794), (49, 632710), (62, 500045), (65, 476966), (70, 442897), (91, 340690), (98, 316355), (130, 238483), (155, 200018), (157, 197470), (182, 170345), (217, 142870), (245, 126542), (310, 100009), (314, 98735), (403, 76930), (434, 71435), (455, 68138), (490, 63271), (637, 48670), (785, 39494), (806, 38465), (910, 34069), (1085, 28574), (1099, 28210), (1274, 24335), (1519, 20410), (1570, 19747), (2015, 15386), (2041, 15190), (2170, 14287), (2198, 14105), (2821, 10990), (3038, 10205), (3185, 9734), (4030, 7693), (4082, 7595), (4867, 6370), (5495, 5642)]