30997960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{743}}^1$

素因数の和:910

約数の個数: 64

約数和(自身を含む): 80352000

約数和(自身を除く): 49354040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 149, 280, 298, 596, 743, 745, 1043, 1192, 1486, 1490, 2086, 2972, 2980, 3715, 4172, 5201, 5215, 5944, 5960, 7430, 8344, 10402, 10430, 14860, 20804, 20860, 26005, 29720, 41608, 41720, 52010, 104020, 110707, 208040, 221414, 442828, 553535, 774949, 885656, 1107070, 1549898, 2214140, 3099796, 3874745, 4428280, 6199592, 7749490, 15498980, 30997960]

約数ペア:

[(1, 30997960), (2, 15498980), (4, 7749490), (5, 6199592), (7, 4428280), (8, 3874745), (10, 3099796), (14, 2214140), (20, 1549898), (28, 1107070), (35, 885656), (40, 774949), (56, 553535), (70, 442828), (140, 221414), (149, 208040), (280, 110707), (298, 104020), (596, 52010), (743, 41720), (745, 41608), (1043, 29720), (1192, 26005), (1486, 20860), (1490, 20804), (2086, 14860), (2972, 10430), (2980, 10402), (3715, 8344), (4172, 7430), (5201, 5960), (5215, 5944)]