72639980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1327}}^1$

素因数の和:1383

約数の個数: 96

約数和(自身を含む): 192761856

約数和(自身を除く): 120121876

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 23, 28, 34, 35, 46, 68, 70, 85, 92, 115, 119, 140, 161, 170, 230, 238, 322, 340, 391, 460, 476, 595, 644, 782, 805, 1190, 1327, 1564, 1610, 1955, 2380, 2654, 2737, 3220, 3910, 5308, 5474, 6635, 7820, 9289, 10948, 13270, 13685, 18578, 22559, 26540, 27370, 30521, 37156, 45118, 46445, 54740, 61042, 90236, 92890, 112795, 122084, 152605, 157913, 185780, 213647, 225590, 305210, 315826, 427294, 451180, 518857, 610420, 631652, 789565, 854588, 1037714, 1068235, 1579130, 2075428, 2136470, 2594285, 3158260, 3631999, 4272940, 5188570, 7263998, 10377140, 14527996, 18159995, 36319990, 72639980]

約数ペア:

[(1, 72639980), (2, 36319990), (4, 18159995), (5, 14527996), (7, 10377140), (10, 7263998), (14, 5188570), (17, 4272940), (20, 3631999), (23, 3158260), (28, 2594285), (34, 2136470), (35, 2075428), (46, 1579130), (68, 1068235), (70, 1037714), (85, 854588), (92, 789565), (115, 631652), (119, 610420), (140, 518857), (161, 451180), (170, 427294), (230, 315826), (238, 305210), (322, 225590), (340, 213647), (391, 185780), (460, 157913), (476, 152605), (595, 122084), (644, 112795), (782, 92890), (805, 90236), (1190, 61042), (1327, 54740), (1564, 46445), (1610, 45118), (1955, 37156), (2380, 30521), (2654, 27370), (2737, 26540), (3220, 22559), (3910, 18578), (5308, 13685), (5474, 13270), (6635, 10948), (7820, 9289)]