40865120

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 101243520

約数和(自身を除く): 60378400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 61, 79, 80, 106, 122, 158, 160, 212, 244, 265, 305, 316, 395, 424, 488, 530, 610, 632, 790, 848, 976, 1060, 1220, 1264, 1580, 1696, 1952, 2120, 2440, 2528, 3160, 3233, 4187, 4240, 4819, 4880, 6320, 6466, 8374, 8480, 9638, 9760, 12640, 12932, 16165, 16748, 19276, 20935, 24095, 25864, 32330, 33496, 38552, 41870, 48190, 51728, 64660, 66992, 77104, 83740, 96380, 103456, 129320, 133984, 154208, 167480, 192760, 255407, 258640, 334960, 385520, 510814, 517280, 669920, 771040, 1021628, 1277035, 2043256, 2554070, 4086512, 5108140, 8173024, 10216280, 20432560, 40865120]

約数ペア:

[(1, 40865120), (2, 20432560), (4, 10216280), (5, 8173024), (8, 5108140), (10, 4086512), (16, 2554070), (20, 2043256), (32, 1277035), (40, 1021628), (53, 771040), (61, 669920), (79, 517280), (80, 510814), (106, 385520), (122, 334960), (158, 258640), (160, 255407), (212, 192760), (244, 167480), (265, 154208), (305, 133984), (316, 129320), (395, 103456), (424, 96380), (488, 83740), (530, 77104), (610, 66992), (632, 64660), (790, 51728), (848, 48190), (976, 41870), (1060, 38552), (1220, 33496), (1264, 32330), (1580, 25864), (1696, 24095), (1952, 20935), (2120, 19276), (2440, 16748), (2528, 16165), (3160, 12932), (3233, 12640), (4187, 9760), (4240, 9638), (4819, 8480), (4880, 8374), (6320, 6466)]