20706450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 54615552

約数和(自身を除く): 33909102

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 61, 62, 73, 75, 93, 122, 146, 150, 155, 183, 186, 219, 305, 310, 365, 366, 438, 465, 610, 730, 775, 915, 930, 1095, 1525, 1550, 1825, 1830, 1891, 2190, 2263, 2325, 3050, 3650, 3782, 4453, 4526, 4575, 4650, 5475, 5673, 6789, 8906, 9150, 9455, 10950, 11315, 11346, 13359, 13578, 18910, 22265, 22630, 26718, 28365, 33945, 44530, 47275, 56575, 56730, 66795, 67890, 94550, 111325, 113150, 133590, 138043, 141825, 169725, 222650, 276086, 283650, 333975, 339450, 414129, 667950, 690215, 828258, 1380430, 2070645, 3451075, 4141290, 6902150, 10353225, 20706450]

約数ペア:

[(1, 20706450), (2, 10353225), (3, 6902150), (5, 4141290), (6, 3451075), (10, 2070645), (15, 1380430), (25, 828258), (30, 690215), (31, 667950), (50, 414129), (61, 339450), (62, 333975), (73, 283650), (75, 276086), (93, 222650), (122, 169725), (146, 141825), (150, 138043), (155, 133590), (183, 113150), (186, 111325), (219, 94550), (305, 67890), (310, 66795), (365, 56730), (366, 56575), (438, 47275), (465, 44530), (610, 33945), (730, 28365), (775, 26718), (915, 22630), (930, 22265), (1095, 18910), (1525, 13578), (1550, 13359), (1825, 11346), (1830, 11315), (1891, 10950), (2190, 9455), (2263, 9150), (2325, 8906), (3050, 6789), (3650, 5673), (3782, 5475), (4453, 4650), (4526, 4575)]