20661540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:317

約数の個数: 96

約数和(自身を含む): 61133184

約数和(自身を除く): 40471644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 41, 60, 74, 82, 111, 123, 148, 164, 185, 205, 222, 227, 246, 370, 410, 444, 454, 492, 555, 615, 681, 740, 820, 908, 1110, 1135, 1230, 1362, 1517, 2220, 2270, 2460, 2724, 3034, 3405, 4540, 4551, 6068, 6810, 7585, 8399, 9102, 9307, 13620, 15170, 16798, 18204, 18614, 22755, 25197, 27921, 30340, 33596, 37228, 41995, 45510, 46535, 50394, 55842, 83990, 91020, 93070, 100788, 111684, 125985, 139605, 167980, 186140, 251970, 279210, 344359, 503940, 558420, 688718, 1033077, 1377436, 1721795, 2066154, 3443590, 4132308, 5165385, 6887180, 10330770, 20661540]

約数ペア:

[(1, 20661540), (2, 10330770), (3, 6887180), (4, 5165385), (5, 4132308), (6, 3443590), (10, 2066154), (12, 1721795), (15, 1377436), (20, 1033077), (30, 688718), (37, 558420), (41, 503940), (60, 344359), (74, 279210), (82, 251970), (111, 186140), (123, 167980), (148, 139605), (164, 125985), (185, 111684), (205, 100788), (222, 93070), (227, 91020), (246, 83990), (370, 55842), (410, 50394), (444, 46535), (454, 45510), (492, 41995), (555, 37228), (615, 33596), (681, 30340), (740, 27921), (820, 25197), (908, 22755), (1110, 18614), (1135, 18204), (1230, 16798), (1362, 15170), (1517, 13620), (2220, 9307), (2270, 9102), (2460, 8399), (2724, 7585), (3034, 6810), (3405, 6068), (4540, 4551)]