81431340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1171}}^1$

素因数の和:1263

約数の個数: 96

約数和(自身を含む): 244151040

約数和(自身を除く): 162719700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 61, 76, 95, 114, 122, 183, 190, 228, 244, 285, 305, 366, 380, 570, 610, 732, 915, 1140, 1159, 1171, 1220, 1830, 2318, 2342, 3477, 3513, 3660, 4636, 4684, 5795, 5855, 6954, 7026, 11590, 11710, 13908, 14052, 17385, 17565, 22249, 23180, 23420, 34770, 35130, 44498, 66747, 69540, 70260, 71431, 88996, 111245, 133494, 142862, 214293, 222490, 266988, 285724, 333735, 357155, 428586, 444980, 667470, 714310, 857172, 1071465, 1334940, 1357189, 1428620, 2142930, 2714378, 4071567, 4285860, 5428756, 6785945, 8143134, 13571890, 16286268, 20357835, 27143780, 40715670, 81431340]

約数ペア:

[(1, 81431340), (2, 40715670), (3, 27143780), (4, 20357835), (5, 16286268), (6, 13571890), (10, 8143134), (12, 6785945), (15, 5428756), (19, 4285860), (20, 4071567), (30, 2714378), (38, 2142930), (57, 1428620), (60, 1357189), (61, 1334940), (76, 1071465), (95, 857172), (114, 714310), (122, 667470), (183, 444980), (190, 428586), (228, 357155), (244, 333735), (285, 285724), (305, 266988), (366, 222490), (380, 214293), (570, 142862), (610, 133494), (732, 111245), (915, 88996), (1140, 71431), (1159, 70260), (1171, 69540), (1220, 66747), (1830, 44498), (2318, 35130), (2342, 34770), (3477, 23420), (3513, 23180), (3660, 22249), (4636, 17565), (4684, 17385), (5795, 14052), (5855, 13908), (6954, 11710), (7026, 11590)]