1340705020

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{449}}^1\times {\mathrm{863}}^1$

素因数の和:1494

約数の個数: 48

約数和(自身を含む): 2841350400

約数和(自身を除く): 1500645380

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 449, 692, 863, 865, 898, 1726, 1730, 1796, 2245, 3452, 3460, 4315, 4490, 8630, 8980, 17260, 77677, 149299, 155354, 298598, 310708, 387487, 388385, 597196, 746495, 774974, 776770, 1492990, 1549948, 1553540, 1937435, 2985980, 3874870, 7749740, 67035251, 134070502, 268141004, 335176255, 670352510, 1340705020]

約数ペア:

[(1, 1340705020), (2, 670352510), (4, 335176255), (5, 268141004), (10, 134070502), (20, 67035251), (173, 7749740), (346, 3874870), (449, 2985980), (692, 1937435), (863, 1553540), (865, 1549948), (898, 1492990), (1726, 776770), (1730, 774974), (1796, 746495), (2245, 597196), (3452, 388385), (3460, 387487), (4315, 310708), (4490, 298598), (8630, 155354), (8980, 149299), (17260, 77677)]