18787890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{197}}^1$

素因数の和:252

約数の個数: 96

約数和(自身を含む): 52519104

約数和(自身を除く): 33731214

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 17, 22, 30, 33, 34, 51, 55, 66, 85, 102, 110, 165, 170, 187, 197, 255, 289, 330, 374, 394, 510, 561, 578, 591, 867, 935, 985, 1122, 1182, 1445, 1734, 1870, 1970, 2167, 2805, 2890, 2955, 3179, 3349, 4334, 4335, 5610, 5910, 6358, 6501, 6698, 8670, 9537, 10047, 10835, 13002, 15895, 16745, 19074, 20094, 21670, 31790, 32505, 33490, 36839, 47685, 50235, 56933, 65010, 73678, 95370, 100470, 110517, 113866, 170799, 184195, 221034, 284665, 341598, 368390, 552585, 569330, 626263, 853995, 1105170, 1252526, 1707990, 1878789, 3131315, 3757578, 6262630, 9393945, 18787890]

約数ペア:

[(1, 18787890), (2, 9393945), (3, 6262630), (5, 3757578), (6, 3131315), (10, 1878789), (11, 1707990), (15, 1252526), (17, 1105170), (22, 853995), (30, 626263), (33, 569330), (34, 552585), (51, 368390), (55, 341598), (66, 284665), (85, 221034), (102, 184195), (110, 170799), (165, 113866), (170, 110517), (187, 100470), (197, 95370), (255, 73678), (289, 65010), (330, 56933), (374, 50235), (394, 47685), (510, 36839), (561, 33490), (578, 32505), (591, 31790), (867, 21670), (935, 20094), (985, 19074), (1122, 16745), (1182, 15895), (1445, 13002), (1734, 10835), (1870, 10047), (1970, 9537), (2167, 8670), (2805, 6698), (2890, 6501), (2955, 6358), (3179, 5910), (3349, 5610), (4334, 4335)]