20479530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 54425088

約数和(自身を除く): 33945558

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 31, 38, 57, 61, 62, 93, 95, 114, 122, 155, 183, 186, 190, 285, 305, 310, 361, 366, 465, 570, 589, 610, 722, 915, 930, 1083, 1159, 1178, 1767, 1805, 1830, 1891, 2166, 2318, 2945, 3477, 3534, 3610, 3782, 5415, 5673, 5795, 5890, 6954, 8835, 9455, 10830, 11191, 11346, 11590, 17385, 17670, 18910, 22021, 22382, 28365, 33573, 34770, 35929, 44042, 55955, 56730, 66063, 67146, 71858, 107787, 110105, 111910, 132126, 167865, 179645, 215574, 220210, 330315, 335730, 359290, 538935, 660630, 682651, 1077870, 1365302, 2047953, 3413255, 4095906, 6826510, 10239765, 20479530]

約数ペア:

[(1, 20479530), (2, 10239765), (3, 6826510), (5, 4095906), (6, 3413255), (10, 2047953), (15, 1365302), (19, 1077870), (30, 682651), (31, 660630), (38, 538935), (57, 359290), (61, 335730), (62, 330315), (93, 220210), (95, 215574), (114, 179645), (122, 167865), (155, 132126), (183, 111910), (186, 110105), (190, 107787), (285, 71858), (305, 67146), (310, 66063), (361, 56730), (366, 55955), (465, 44042), (570, 35929), (589, 34770), (610, 33573), (722, 28365), (915, 22382), (930, 22021), (1083, 18910), (1159, 17670), (1178, 17385), (1767, 11590), (1805, 11346), (1830, 11191), (1891, 10830), (2166, 9455), (2318, 8835), (2945, 6954), (3477, 5890), (3534, 5795), (3610, 5673), (3782, 5415)]