218214620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{271}}^1$

素因数の和:475

約数の個数: 96

約数和(自身を含む): 524590080

約数和(自身を除く): 306375460

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 163, 190, 247, 260, 271, 326, 380, 494, 542, 652, 815, 988, 1084, 1235, 1355, 1630, 2119, 2470, 2710, 3097, 3260, 3523, 4238, 4940, 5149, 5420, 6194, 7046, 8476, 10298, 10595, 12388, 14092, 15485, 17615, 20596, 21190, 25745, 30970, 35230, 40261, 42380, 44173, 51490, 61940, 66937, 70460, 80522, 88346, 102980, 133874, 161044, 176692, 201305, 220865, 267748, 334685, 402610, 441730, 574249, 669370, 805220, 839287, 883460, 1148498, 1338740, 1678574, 2296996, 2871245, 3357148, 4196435, 5742490, 8392870, 10910731, 11484980, 16785740, 21821462, 43642924, 54553655, 109107310, 218214620]

約数ペア:

[(1, 218214620), (2, 109107310), (4, 54553655), (5, 43642924), (10, 21821462), (13, 16785740), (19, 11484980), (20, 10910731), (26, 8392870), (38, 5742490), (52, 4196435), (65, 3357148), (76, 2871245), (95, 2296996), (130, 1678574), (163, 1338740), (190, 1148498), (247, 883460), (260, 839287), (271, 805220), (326, 669370), (380, 574249), (494, 441730), (542, 402610), (652, 334685), (815, 267748), (988, 220865), (1084, 201305), (1235, 176692), (1355, 161044), (1630, 133874), (2119, 102980), (2470, 88346), (2710, 80522), (3097, 70460), (3260, 66937), (3523, 61940), (4238, 51490), (4940, 44173), (5149, 42380), (5420, 40261), (6194, 35230), (7046, 30970), (8476, 25745), (10298, 21190), (10595, 20596), (12388, 17615), (14092, 15485)]