55605560

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 128671200

約数和(自身を除く): 73065640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 137, 139, 146, 274, 278, 292, 365, 548, 556, 584, 685, 695, 730, 1096, 1112, 1370, 1390, 1460, 2740, 2780, 2920, 5480, 5560, 10001, 10147, 19043, 20002, 20294, 38086, 40004, 40588, 50005, 50735, 76172, 80008, 81176, 95215, 100010, 101470, 152344, 190430, 200020, 202940, 380860, 400040, 405880, 761720, 1390139, 2780278, 5560556, 6950695, 11121112, 13901390, 27802780, 55605560]

約数ペア:

[(1, 55605560), (2, 27802780), (4, 13901390), (5, 11121112), (8, 6950695), (10, 5560556), (20, 2780278), (40, 1390139), (73, 761720), (137, 405880), (139, 400040), (146, 380860), (274, 202940), (278, 200020), (292, 190430), (365, 152344), (548, 101470), (556, 100010), (584, 95215), (685, 81176), (695, 80008), (730, 76172), (1096, 50735), (1112, 50005), (1370, 40588), (1390, 40004), (1460, 38086), (2740, 20294), (2780, 20002), (2920, 19043), (5480, 10147), (5560, 10001)]