180320980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{4973}}^1$

素因数の和:5033

約数の個数: 72

約数和(自身を含む): 452494728

約数和(自身を除く): 272173748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1295, 1813, 2590, 3626, 4973, 5180, 7252, 9065, 9946, 18130, 19892, 24865, 34811, 36260, 49730, 69622, 99460, 139244, 174055, 184001, 243677, 348110, 368002, 487354, 696220, 736004, 920005, 974708, 1218385, 1288007, 1840010, 2436770, 2576014, 3680020, 4873540, 5152028, 6440035, 9016049, 12880070, 18032098, 25760140, 36064196, 45080245, 90160490, 180320980]

約数ペア:

[(1, 180320980), (2, 90160490), (4, 45080245), (5, 36064196), (7, 25760140), (10, 18032098), (14, 12880070), (20, 9016049), (28, 6440035), (35, 5152028), (37, 4873540), (49, 3680020), (70, 2576014), (74, 2436770), (98, 1840010), (140, 1288007), (148, 1218385), (185, 974708), (196, 920005), (245, 736004), (259, 696220), (370, 487354), (490, 368002), (518, 348110), (740, 243677), (980, 184001), (1036, 174055), (1295, 139244), (1813, 99460), (2590, 69622), (3626, 49730), (4973, 36260), (5180, 34811), (7252, 24865), (9065, 19892), (9946, 18130)]