31382680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1$

素因数の和:401

約数の個数: 128

約数和(自身を含む): 90201600

約数和(自身を除く): 58818920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 347, 380, 476, 532, 595, 646, 665, 680, 694, 760, 952, 1064, 1190, 1292, 1330, 1388, 1615, 1735, 2261, 2380, 2429, 2584, 2660, 2776, 3230, 3470, 4522, 4760, 4858, 5320, 5899, 6460, 6593, 6940, 9044, 9716, 11305, 11798, 12145, 12920, 13186, 13880, 18088, 19432, 22610, 23596, 24290, 26372, 29495, 32965, 41293, 45220, 46151, 47192, 48580, 52744, 58990, 65930, 82586, 90440, 92302, 97160, 112081, 117980, 131860, 165172, 184604, 206465, 224162, 230755, 235960, 263720, 330344, 369208, 412930, 448324, 461510, 560405, 784567, 825860, 896648, 923020, 1120810, 1569134, 1651720, 1846040, 2241620, 3138268, 3922835, 4483240, 6276536, 7845670, 15691340, 31382680]

約数ペア:

[(1, 31382680), (2, 15691340), (4, 7845670), (5, 6276536), (7, 4483240), (8, 3922835), (10, 3138268), (14, 2241620), (17, 1846040), (19, 1651720), (20, 1569134), (28, 1120810), (34, 923020), (35, 896648), (38, 825860), (40, 784567), (56, 560405), (68, 461510), (70, 448324), (76, 412930), (85, 369208), (95, 330344), (119, 263720), (133, 235960), (136, 230755), (140, 224162), (152, 206465), (170, 184604), (190, 165172), (238, 131860), (266, 117980), (280, 112081), (323, 97160), (340, 92302), (347, 90440), (380, 82586), (476, 65930), (532, 58990), (595, 52744), (646, 48580), (665, 47192), (680, 46151), (694, 45220), (760, 41293), (952, 32965), (1064, 29495), (1190, 26372), (1292, 24290), (1330, 23596), (1388, 22610), (1615, 19432), (1735, 18088), (2261, 13880), (2380, 13186), (2429, 12920), (2584, 12145), (2660, 11798), (2776, 11305), (3230, 9716), (3470, 9044), (4522, 6940), (4760, 6593), (4858, 6460), (5320, 5899)]