207625540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 465658200

約数和(自身を除く): 258032660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 149, 190, 193, 298, 361, 380, 386, 596, 722, 745, 772, 965, 1444, 1490, 1805, 1930, 2831, 2980, 3610, 3667, 3860, 5662, 7220, 7334, 11324, 14155, 14668, 18335, 28310, 28757, 36670, 53789, 56620, 57514, 69673, 73340, 107578, 115028, 139346, 143785, 215156, 268945, 278692, 287570, 348365, 537890, 546383, 575140, 696730, 1075780, 1092766, 1393460, 2185532, 2731915, 5463830, 10381277, 10927660, 20762554, 41525108, 51906385, 103812770, 207625540]

約数ペア:

[(1, 207625540), (2, 103812770), (4, 51906385), (5, 41525108), (10, 20762554), (19, 10927660), (20, 10381277), (38, 5463830), (76, 2731915), (95, 2185532), (149, 1393460), (190, 1092766), (193, 1075780), (298, 696730), (361, 575140), (380, 546383), (386, 537890), (596, 348365), (722, 287570), (745, 278692), (772, 268945), (965, 215156), (1444, 143785), (1490, 139346), (1805, 115028), (1930, 107578), (2831, 73340), (2980, 69673), (3610, 57514), (3667, 56620), (3860, 53789), (5662, 36670), (7220, 28757), (7334, 28310), (11324, 18335), (14155, 14668)]