20007240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{659}}^1$

素因数の和:707

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 48421560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 44, 46, 55, 60, 66, 69, 88, 92, 110, 115, 120, 132, 138, 165, 184, 220, 230, 253, 264, 276, 330, 345, 440, 460, 506, 552, 659, 660, 690, 759, 920, 1012, 1265, 1318, 1320, 1380, 1518, 1977, 2024, 2530, 2636, 2760, 3036, 3295, 3795, 3954, 5060, 5272, 6072, 6590, 7249, 7590, 7908, 9885, 10120, 13180, 14498, 15157, 15180, 15816, 19770, 21747, 26360, 28996, 30314, 30360, 36245, 39540, 43494, 45471, 57992, 60628, 72490, 75785, 79080, 86988, 90942, 108735, 121256, 144980, 151570, 166727, 173976, 181884, 217470, 227355, 289960, 303140, 333454, 363768, 434940, 454710, 500181, 606280, 666908, 833635, 869880, 909420, 1000362, 1333816, 1667270, 1818840, 2000724, 2500905, 3334540, 4001448, 5001810, 6669080, 10003620, 20007240]

約数ペア:

[(1, 20007240), (2, 10003620), (3, 6669080), (4, 5001810), (5, 4001448), (6, 3334540), (8, 2500905), (10, 2000724), (11, 1818840), (12, 1667270), (15, 1333816), (20, 1000362), (22, 909420), (23, 869880), (24, 833635), (30, 666908), (33, 606280), (40, 500181), (44, 454710), (46, 434940), (55, 363768), (60, 333454), (66, 303140), (69, 289960), (88, 227355), (92, 217470), (110, 181884), (115, 173976), (120, 166727), (132, 151570), (138, 144980), (165, 121256), (184, 108735), (220, 90942), (230, 86988), (253, 79080), (264, 75785), (276, 72490), (330, 60628), (345, 57992), (440, 45471), (460, 43494), (506, 39540), (552, 36245), (659, 30360), (660, 30314), (690, 28996), (759, 26360), (920, 21747), (1012, 19770), (1265, 15816), (1318, 15180), (1320, 15157), (1380, 14498), (1518, 13180), (1977, 10120), (2024, 9885), (2530, 7908), (2636, 7590), (2760, 7249), (3036, 6590), (3295, 6072), (3795, 5272), (3954, 5060)]