20188953650

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^2\times {\mathrm{131}}^1\times {\mathrm{1667}}^1$

素因数の和:1896

約数の個数: 72

約数和(自身を含む): 38761764624

約数和(自身を除く): 18572810974

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 131, 215, 262, 430, 655, 1075, 1310, 1667, 1849, 2150, 3275, 3334, 3698, 5633, 6550, 8335, 9245, 11266, 16670, 18490, 28165, 41675, 46225, 56330, 71681, 83350, 92450, 140825, 143362, 218377, 242219, 281650, 358405, 436754, 484438, 716810, 1091885, 1211095, 1792025, 2183770, 2422190, 3082283, 3584050, 5459425, 6055475, 6164566, 9390211, 10918850, 12110950, 15411415, 18780422, 30822830, 46951055, 77057075, 93902110, 154114150, 234755275, 403779073, 469510550, 807558146, 2018895365, 4037790730, 10094476825, 20188953650]

約数ペア:

[(1, 20188953650), (2, 10094476825), (5, 4037790730), (10, 2018895365), (25, 807558146), (43, 469510550), (50, 403779073), (86, 234755275), (131, 154114150), (215, 93902110), (262, 77057075), (430, 46951055), (655, 30822830), (1075, 18780422), (1310, 15411415), (1667, 12110950), (1849, 10918850), (2150, 9390211), (3275, 6164566), (3334, 6055475), (3698, 5459425), (5633, 3584050), (6550, 3082283), (8335, 2422190), (9245, 2183770), (11266, 1792025), (16670, 1211095), (18490, 1091885), (28165, 716810), (41675, 484438), (46225, 436754), (56330, 358405), (71681, 281650), (83350, 242219), (92450, 218377), (140825, 143362)]