81613120

素因数分解:

$2^6\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:228

約数の個数: 112

約数和(自身を含む): 204661008

約数和(自身を除く): 123047888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 61, 64, 74, 80, 113, 122, 148, 160, 185, 226, 244, 296, 305, 320, 370, 452, 488, 565, 592, 610, 740, 904, 976, 1130, 1184, 1220, 1480, 1808, 1952, 2257, 2260, 2368, 2440, 2960, 3616, 3904, 4181, 4514, 4520, 4880, 5920, 6893, 7232, 8362, 9028, 9040, 9760, 11285, 11840, 13786, 16724, 18056, 18080, 19520, 20905, 22570, 27572, 33448, 34465, 36112, 36160, 41810, 45140, 55144, 66896, 68930, 72224, 83620, 90280, 110288, 133792, 137860, 144448, 167240, 180560, 220576, 255041, 267584, 275720, 334480, 361120, 441152, 510082, 551440, 668960, 722240, 1020164, 1102880, 1275205, 1337920, 2040328, 2205760, 2550410, 4080656, 5100820, 8161312, 10201640, 16322624, 20403280, 40806560, 81613120]

約数ペア:

[(1, 81613120), (2, 40806560), (4, 20403280), (5, 16322624), (8, 10201640), (10, 8161312), (16, 5100820), (20, 4080656), (32, 2550410), (37, 2205760), (40, 2040328), (61, 1337920), (64, 1275205), (74, 1102880), (80, 1020164), (113, 722240), (122, 668960), (148, 551440), (160, 510082), (185, 441152), (226, 361120), (244, 334480), (296, 275720), (305, 267584), (320, 255041), (370, 220576), (452, 180560), (488, 167240), (565, 144448), (592, 137860), (610, 133792), (740, 110288), (904, 90280), (976, 83620), (1130, 72224), (1184, 68930), (1220, 66896), (1480, 55144), (1808, 45140), (1952, 41810), (2257, 36160), (2260, 36112), (2368, 34465), (2440, 33448), (2960, 27572), (3616, 22570), (3904, 20905), (4181, 19520), (4514, 18080), (4520, 18056), (4880, 16724), (5920, 13786), (6893, 11840), (7232, 11285), (8362, 9760), (9028, 9040)]