245914520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{421}}^1\times {\mathrm{859}}^1$

素因数の和:1308

約数の個数: 64

約数和(自身を含む): 587930400

約数和(自身を除く): 342015880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 421, 680, 842, 859, 1684, 1718, 2105, 3368, 3436, 4210, 4295, 6872, 7157, 8420, 8590, 14314, 14603, 16840, 17180, 28628, 29206, 34360, 35785, 57256, 58412, 71570, 73015, 116824, 143140, 146030, 286280, 292060, 361639, 584120, 723278, 1446556, 1808195, 2893112, 3616390, 6147863, 7232780, 12295726, 14465560, 24591452, 30739315, 49182904, 61478630, 122957260, 245914520]

約数ペア:

[(1, 245914520), (2, 122957260), (4, 61478630), (5, 49182904), (8, 30739315), (10, 24591452), (17, 14465560), (20, 12295726), (34, 7232780), (40, 6147863), (68, 3616390), (85, 2893112), (136, 1808195), (170, 1446556), (340, 723278), (421, 584120), (680, 361639), (842, 292060), (859, 286280), (1684, 146030), (1718, 143140), (2105, 116824), (3368, 73015), (3436, 71570), (4210, 58412), (4295, 57256), (6872, 35785), (7157, 34360), (8420, 29206), (8590, 28628), (14314, 17180), (14603, 16840)]