389914900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1723}}^1$

素因数の和:1841

約数の個数: 72

約数和(自身を含む): 885887744

約数和(自身を除く): 495972844

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 73, 100, 124, 146, 155, 292, 310, 365, 620, 730, 775, 1460, 1550, 1723, 1825, 2263, 3100, 3446, 3650, 4526, 6892, 7300, 8615, 9052, 11315, 17230, 22630, 34460, 43075, 45260, 53413, 56575, 86150, 106826, 113150, 125779, 172300, 213652, 226300, 251558, 267065, 503116, 534130, 628895, 1068260, 1257790, 1335325, 2515580, 2670650, 3144475, 3899149, 5341300, 6288950, 7798298, 12577900, 15596596, 19495745, 38991490, 77982980, 97478725, 194957450, 389914900]

約数ペア:

[(1, 389914900), (2, 194957450), (4, 97478725), (5, 77982980), (10, 38991490), (20, 19495745), (25, 15596596), (31, 12577900), (50, 7798298), (62, 6288950), (73, 5341300), (100, 3899149), (124, 3144475), (146, 2670650), (155, 2515580), (292, 1335325), (310, 1257790), (365, 1068260), (620, 628895), (730, 534130), (775, 503116), (1460, 267065), (1550, 251558), (1723, 226300), (1825, 213652), (2263, 172300), (3100, 125779), (3446, 113150), (3650, 106826), (4526, 86150), (6892, 56575), (7300, 53413), (8615, 45260), (9052, 43075), (11315, 34460), (17230, 22630)]