2155740

素因数分解:

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

素因数の和:123

約数の個数: 96

約数和(自身を含む): 6666240

約数和(自身を除く): 4510500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 31, 38, 57, 60, 61, 62, 76, 93, 95, 114, 122, 124, 155, 183, 186, 190, 228, 244, 285, 305, 310, 366, 372, 380, 465, 570, 589, 610, 620, 732, 915, 930, 1140, 1159, 1178, 1220, 1767, 1830, 1860, 1891, 2318, 2356, 2945, 3477, 3534, 3660, 3782, 4636, 5673, 5795, 5890, 6954, 7068, 7564, 8835, 9455, 11346, 11590, 11780, 13908, 17385, 17670, 18910, 22692, 23180, 28365, 34770, 35340, 35929, 37820, 56730, 69540, 71858, 107787, 113460, 143716, 179645, 215574, 359290, 431148, 538935, 718580, 1077870, 2155740]

約数ペア:

[(1, 2155740), (2, 1077870), (3, 718580), (4, 538935), (5, 431148), (6, 359290), (10, 215574), (12, 179645), (15, 143716), (19, 113460), (20, 107787), (30, 71858), (31, 69540), (38, 56730), (57, 37820), (60, 35929), (61, 35340), (62, 34770), (76, 28365), (93, 23180), (95, 22692), (114, 18910), (122, 17670), (124, 17385), (155, 13908), (183, 11780), (186, 11590), (190, 11346), (228, 9455), (244, 8835), (285, 7564), (305, 7068), (310, 6954), (366, 5890), (372, 5795), (380, 5673), (465, 4636), (570, 3782), (589, 3660), (610, 3534), (620, 3477), (732, 2945), (915, 2356), (930, 2318), (1140, 1891), (1159, 1860), (1178, 1830), (1220, 1767)]