248561720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{18223}}^1$

素因数の和:18276

約数の個数: 64

約数和(自身を含む): 629821440

約数和(自身を除く): 381259720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 1240, 1364, 1705, 2728, 3410, 6820, 13640, 18223, 36446, 72892, 91115, 145784, 182230, 200453, 364460, 400906, 564913, 728920, 801812, 1002265, 1129826, 1603624, 2004530, 2259652, 2824565, 4009060, 4519304, 5649130, 6214043, 8018120, 11298260, 12428086, 22596520, 24856172, 31070215, 49712344, 62140430, 124280860, 248561720]

約数ペア:

[(1, 248561720), (2, 124280860), (4, 62140430), (5, 49712344), (8, 31070215), (10, 24856172), (11, 22596520), (20, 12428086), (22, 11298260), (31, 8018120), (40, 6214043), (44, 5649130), (55, 4519304), (62, 4009060), (88, 2824565), (110, 2259652), (124, 2004530), (155, 1603624), (220, 1129826), (248, 1002265), (310, 801812), (341, 728920), (440, 564913), (620, 400906), (682, 364460), (1240, 200453), (1364, 182230), (1705, 145784), (2728, 91115), (3410, 72892), (6820, 36446), (13640, 18223)]