1638133040

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^2\times {\mathrm{5503}}^1$

素因数の和:5638

約数の個数: 60

約数和(自身を含む): 3872823552

約数和(自身を除く): 2234690512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 3721, 4880, 5503, 7442, 11006, 14884, 18605, 22012, 27515, 29768, 37210, 44024, 55030, 59536, 74420, 88048, 110060, 148840, 220120, 297680, 335683, 440240, 671366, 1342732, 1678415, 2685464, 3356830, 5370928, 6713660, 13427320, 20476663, 26854640, 40953326, 81906652, 102383315, 163813304, 204766630, 327626608, 409533260, 819066520, 1638133040]

約数ペア:

[(1, 1638133040), (2, 819066520), (4, 409533260), (5, 327626608), (8, 204766630), (10, 163813304), (16, 102383315), (20, 81906652), (40, 40953326), (61, 26854640), (80, 20476663), (122, 13427320), (244, 6713660), (305, 5370928), (488, 3356830), (610, 2685464), (976, 1678415), (1220, 1342732), (2440, 671366), (3721, 440240), (4880, 335683), (5503, 297680), (7442, 220120), (11006, 148840), (14884, 110060), (18605, 88048), (22012, 74420), (27515, 59536), (29768, 55030), (37210, 44024)]