15498980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{743}}^1$

素因数の和:908

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 21998620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 743, 745, 1043, 1486, 1490, 2086, 2972, 2980, 3715, 4172, 5201, 5215, 7430, 10402, 10430, 14860, 20804, 20860, 26005, 52010, 104020, 110707, 221414, 442828, 553535, 774949, 1107070, 1549898, 2214140, 3099796, 3874745, 7749490, 15498980]

約数ペア:

[(1, 15498980), (2, 7749490), (4, 3874745), (5, 3099796), (7, 2214140), (10, 1549898), (14, 1107070), (20, 774949), (28, 553535), (35, 442828), (70, 221414), (140, 110707), (149, 104020), (298, 52010), (596, 26005), (743, 20860), (745, 20804), (1043, 14860), (1486, 10430), (1490, 10402), (2086, 7430), (2972, 5215), (2980, 5201), (3715, 4172)]