26890020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 86661120

約数和(自身を除く): 59771100

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 61, 62, 79, 90, 93, 122, 124, 155, 158, 180, 183, 186, 237, 244, 279, 305, 310, 316, 366, 372, 395, 465, 474, 549, 558, 610, 620, 711, 732, 790, 915, 930, 948, 1098, 1116, 1185, 1220, 1395, 1422, 1580, 1830, 1860, 1891, 2196, 2370, 2449, 2745, 2790, 2844, 3555, 3660, 3782, 4740, 4819, 4898, 5490, 5580, 5673, 7110, 7347, 7564, 9455, 9638, 9796, 10980, 11346, 12245, 14220, 14457, 14694, 17019, 18910, 19276, 22041, 22692, 24095, 24490, 28365, 28914, 29388, 34038, 36735, 37820, 43371, 44082, 48190, 48980, 56730, 57828, 68076, 72285, 73470, 85095, 86742, 88164, 96380, 110205, 113460, 144570, 146940, 149389, 170190, 173484, 216855, 220410, 289140, 298778, 340380, 433710, 440820, 448167, 597556, 746945, 867420, 896334, 1344501, 1493890, 1792668, 2240835, 2689002, 2987780, 4481670, 5378004, 6722505, 8963340, 13445010, 26890020]

約数ペア:

[(1, 26890020), (2, 13445010), (3, 8963340), (4, 6722505), (5, 5378004), (6, 4481670), (9, 2987780), (10, 2689002), (12, 2240835), (15, 1792668), (18, 1493890), (20, 1344501), (30, 896334), (31, 867420), (36, 746945), (45, 597556), (60, 448167), (61, 440820), (62, 433710), (79, 340380), (90, 298778), (93, 289140), (122, 220410), (124, 216855), (155, 173484), (158, 170190), (180, 149389), (183, 146940), (186, 144570), (237, 113460), (244, 110205), (279, 96380), (305, 88164), (310, 86742), (316, 85095), (366, 73470), (372, 72285), (395, 68076), (465, 57828), (474, 56730), (549, 48980), (558, 48190), (610, 44082), (620, 43371), (711, 37820), (732, 36735), (790, 34038), (915, 29388), (930, 28914), (948, 28365), (1098, 24490), (1116, 24095), (1185, 22692), (1220, 22041), (1395, 19276), (1422, 18910), (1580, 17019), (1830, 14694), (1860, 14457), (1891, 14220), (2196, 12245), (2370, 11346), (2449, 10980), (2745, 9796), (2790, 9638), (2844, 9455), (3555, 7564), (3660, 7347), (3782, 7110), (4740, 5673), (4819, 5580), (4898, 5490)]