205372520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:463

約数の個数: 128

約数和(自身を含む): 525312000

約数和(自身を除く): 319939480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 31, 38, 40, 46, 62, 76, 92, 95, 115, 124, 152, 155, 184, 190, 230, 248, 310, 379, 380, 437, 460, 589, 620, 713, 758, 760, 874, 920, 1178, 1240, 1426, 1516, 1748, 1895, 2185, 2356, 2852, 2945, 3032, 3496, 3565, 3790, 4370, 4712, 5704, 5890, 7130, 7201, 7580, 8717, 8740, 11749, 11780, 13547, 14260, 14402, 15160, 17434, 17480, 23498, 23560, 27094, 28520, 28804, 34868, 36005, 43585, 46996, 54188, 57608, 58745, 67735, 69736, 72010, 87170, 93992, 108376, 117490, 135470, 144020, 165623, 174340, 223231, 234980, 270227, 270940, 288040, 331246, 348680, 446462, 469960, 540454, 541880, 662492, 828115, 892924, 1080908, 1116155, 1324984, 1351135, 1656230, 1785848, 2161816, 2232310, 2702270, 3312460, 4464620, 5134313, 5404540, 6624920, 8929240, 10268626, 10809080, 20537252, 25671565, 41074504, 51343130, 102686260, 205372520]

約数ペア:

[(1, 205372520), (2, 102686260), (4, 51343130), (5, 41074504), (8, 25671565), (10, 20537252), (19, 10809080), (20, 10268626), (23, 8929240), (31, 6624920), (38, 5404540), (40, 5134313), (46, 4464620), (62, 3312460), (76, 2702270), (92, 2232310), (95, 2161816), (115, 1785848), (124, 1656230), (152, 1351135), (155, 1324984), (184, 1116155), (190, 1080908), (230, 892924), (248, 828115), (310, 662492), (379, 541880), (380, 540454), (437, 469960), (460, 446462), (589, 348680), (620, 331246), (713, 288040), (758, 270940), (760, 270227), (874, 234980), (920, 223231), (1178, 174340), (1240, 165623), (1426, 144020), (1516, 135470), (1748, 117490), (1895, 108376), (2185, 93992), (2356, 87170), (2852, 72010), (2945, 69736), (3032, 67735), (3496, 58745), (3565, 57608), (3790, 54188), (4370, 46996), (4712, 43585), (5704, 36005), (5890, 34868), (7130, 28804), (7201, 28520), (7580, 27094), (8717, 23560), (8740, 23498), (11749, 17480), (11780, 17434), (13547, 15160), (14260, 14402)]