81528240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{941}}^1$

素因数の和:995

約数の個数: 120

約数和(自身を含む): 267023088

約数和(自身を除く): 185494848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 38, 40, 48, 57, 60, 76, 80, 95, 114, 120, 152, 190, 228, 240, 285, 304, 361, 380, 456, 570, 722, 760, 912, 941, 1083, 1140, 1444, 1520, 1805, 1882, 2166, 2280, 2823, 2888, 3610, 3764, 4332, 4560, 4705, 5415, 5646, 5776, 7220, 7528, 8664, 9410, 10830, 11292, 14115, 14440, 15056, 17328, 17879, 18820, 21660, 22584, 28230, 28880, 35758, 37640, 43320, 45168, 53637, 56460, 71516, 75280, 86640, 89395, 107274, 112920, 143032, 178790, 214548, 225840, 268185, 286064, 339701, 357580, 429096, 536370, 679402, 715160, 858192, 1019103, 1072740, 1358804, 1430320, 1698505, 2038206, 2145480, 2717608, 3397010, 4076412, 4290960, 5095515, 5435216, 6794020, 8152824, 10191030, 13588040, 16305648, 20382060, 27176080, 40764120, 81528240]

約数ペア:

[(1, 81528240), (2, 40764120), (3, 27176080), (4, 20382060), (5, 16305648), (6, 13588040), (8, 10191030), (10, 8152824), (12, 6794020), (15, 5435216), (16, 5095515), (19, 4290960), (20, 4076412), (24, 3397010), (30, 2717608), (38, 2145480), (40, 2038206), (48, 1698505), (57, 1430320), (60, 1358804), (76, 1072740), (80, 1019103), (95, 858192), (114, 715160), (120, 679402), (152, 536370), (190, 429096), (228, 357580), (240, 339701), (285, 286064), (304, 268185), (361, 225840), (380, 214548), (456, 178790), (570, 143032), (722, 112920), (760, 107274), (912, 89395), (941, 86640), (1083, 75280), (1140, 71516), (1444, 56460), (1520, 53637), (1805, 45168), (1882, 43320), (2166, 37640), (2280, 35758), (2823, 28880), (2888, 28230), (3610, 22584), (3764, 21660), (4332, 18820), (4560, 17879), (4705, 17328), (5415, 15056), (5646, 14440), (5776, 14115), (7220, 11292), (7528, 10830), (8664, 9410)]