20411360

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:180

約数の個数: 96

約数和(自身を含む): 51438240

約数和(自身を除く): 31026880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 53, 58, 80, 83, 106, 116, 145, 160, 166, 212, 232, 265, 290, 332, 415, 424, 464, 530, 580, 664, 830, 848, 928, 1060, 1160, 1328, 1537, 1660, 1696, 2120, 2320, 2407, 2656, 3074, 3320, 4240, 4399, 4640, 4814, 6148, 6640, 7685, 8480, 8798, 9628, 12035, 12296, 13280, 15370, 17596, 19256, 21995, 24070, 24592, 30740, 35192, 38512, 43990, 48140, 49184, 61480, 70384, 77024, 87980, 96280, 122960, 127571, 140768, 175960, 192560, 245920, 255142, 351920, 385120, 510284, 637855, 703840, 1020568, 1275710, 2041136, 2551420, 4082272, 5102840, 10205680, 20411360]

約数ペア:

[(1, 20411360), (2, 10205680), (4, 5102840), (5, 4082272), (8, 2551420), (10, 2041136), (16, 1275710), (20, 1020568), (29, 703840), (32, 637855), (40, 510284), (53, 385120), (58, 351920), (80, 255142), (83, 245920), (106, 192560), (116, 175960), (145, 140768), (160, 127571), (166, 122960), (212, 96280), (232, 87980), (265, 77024), (290, 70384), (332, 61480), (415, 49184), (424, 48140), (464, 43990), (530, 38512), (580, 35192), (664, 30740), (830, 24592), (848, 24070), (928, 21995), (1060, 19256), (1160, 17596), (1328, 15370), (1537, 13280), (1660, 12296), (1696, 12035), (2120, 9628), (2320, 8798), (2407, 8480), (2656, 7685), (3074, 6640), (3320, 6148), (4240, 4814), (4399, 4640)]