180740540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 420403200

約数和(自身を除く): 239662660

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 67, 76, 95, 124, 134, 155, 190, 229, 268, 310, 335, 380, 458, 589, 620, 670, 916, 1145, 1178, 1273, 1340, 2077, 2290, 2356, 2546, 2945, 4154, 4351, 4580, 5092, 5890, 6365, 7099, 8308, 8702, 10385, 11780, 12730, 14198, 15343, 17404, 20770, 21755, 25460, 28396, 30686, 35495, 39463, 41540, 43510, 61372, 70990, 76715, 78926, 87020, 134881, 141980, 153430, 157852, 197315, 269762, 291517, 306860, 394630, 475633, 539524, 583034, 674405, 789260, 951266, 1166068, 1348810, 1457585, 1902532, 2378165, 2697620, 2915170, 4756330, 5830340, 9037027, 9512660, 18074054, 36148108, 45185135, 90370270, 180740540]

約数ペア:

[(1, 180740540), (2, 90370270), (4, 45185135), (5, 36148108), (10, 18074054), (19, 9512660), (20, 9037027), (31, 5830340), (38, 4756330), (62, 2915170), (67, 2697620), (76, 2378165), (95, 1902532), (124, 1457585), (134, 1348810), (155, 1166068), (190, 951266), (229, 789260), (268, 674405), (310, 583034), (335, 539524), (380, 475633), (458, 394630), (589, 306860), (620, 291517), (670, 269762), (916, 197315), (1145, 157852), (1178, 153430), (1273, 141980), (1340, 134881), (2077, 87020), (2290, 78926), (2356, 76715), (2546, 70990), (2945, 61372), (4154, 43510), (4351, 41540), (4580, 39463), (5092, 35495), (5890, 30686), (6365, 28396), (7099, 25460), (8308, 21755), (8702, 20770), (10385, 17404), (11780, 15343), (12730, 14198)]