18690100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1307}}^1$

素因数の和:1345

約数の個数: 72

約数和(自身を含む): 47684448

約数和(自身を除く): 28994348

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 25, 26, 44, 50, 52, 55, 65, 100, 110, 130, 143, 220, 260, 275, 286, 325, 550, 572, 650, 715, 1100, 1300, 1307, 1430, 2614, 2860, 3575, 5228, 6535, 7150, 13070, 14300, 14377, 16991, 26140, 28754, 32675, 33982, 57508, 65350, 67964, 71885, 84955, 130700, 143770, 169910, 186901, 287540, 339820, 359425, 373802, 424775, 718850, 747604, 849550, 934505, 1437700, 1699100, 1869010, 3738020, 4672525, 9345050, 18690100]

約数ペア:

[(1, 18690100), (2, 9345050), (4, 4672525), (5, 3738020), (10, 1869010), (11, 1699100), (13, 1437700), (20, 934505), (22, 849550), (25, 747604), (26, 718850), (44, 424775), (50, 373802), (52, 359425), (55, 339820), (65, 287540), (100, 186901), (110, 169910), (130, 143770), (143, 130700), (220, 84955), (260, 71885), (275, 67964), (286, 65350), (325, 57508), (550, 33982), (572, 32675), (650, 28754), (715, 26140), (1100, 16991), (1300, 14377), (1307, 14300), (1430, 13070), (2614, 7150), (2860, 6535), (3575, 5228)]