289305800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{557}}^1$

素因数の和:640

約数の個数: 144

約数和(自身を含む): 798648660

約数和(自身を除く): 509342860

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 53, 56, 70, 98, 100, 106, 140, 175, 196, 200, 212, 245, 265, 280, 350, 371, 392, 424, 490, 530, 557, 700, 742, 980, 1060, 1114, 1225, 1325, 1400, 1484, 1855, 1960, 2120, 2228, 2450, 2597, 2650, 2785, 2968, 3710, 3899, 4456, 4900, 5194, 5300, 5570, 7420, 7798, 9275, 9800, 10388, 10600, 11140, 12985, 13925, 14840, 15596, 18550, 19495, 20776, 22280, 25970, 27293, 27850, 29521, 31192, 37100, 38990, 51940, 54586, 55700, 59042, 64925, 74200, 77980, 97475, 103880, 109172, 111400, 118084, 129850, 136465, 147605, 155960, 194950, 206647, 218344, 236168, 259700, 272930, 295210, 389900, 413294, 519400, 545860, 590420, 682325, 738025, 779800, 826588, 1033235, 1091720, 1180840, 1364650, 1446529, 1476050, 1653176, 2066470, 2729300, 2893058, 2952100, 4132940, 5166175, 5458600, 5786116, 5904200, 7232645, 8265880, 10332350, 11572232, 14465290, 20664700, 28930580, 36163225, 41329400, 57861160, 72326450, 144652900, 289305800]

約数ペア:

[(1, 289305800), (2, 144652900), (4, 72326450), (5, 57861160), (7, 41329400), (8, 36163225), (10, 28930580), (14, 20664700), (20, 14465290), (25, 11572232), (28, 10332350), (35, 8265880), (40, 7232645), (49, 5904200), (50, 5786116), (53, 5458600), (56, 5166175), (70, 4132940), (98, 2952100), (100, 2893058), (106, 2729300), (140, 2066470), (175, 1653176), (196, 1476050), (200, 1446529), (212, 1364650), (245, 1180840), (265, 1091720), (280, 1033235), (350, 826588), (371, 779800), (392, 738025), (424, 682325), (490, 590420), (530, 545860), (557, 519400), (700, 413294), (742, 389900), (980, 295210), (1060, 272930), (1114, 259700), (1225, 236168), (1325, 218344), (1400, 206647), (1484, 194950), (1855, 155960), (1960, 147605), (2120, 136465), (2228, 129850), (2450, 118084), (2597, 111400), (2650, 109172), (2785, 103880), (2968, 97475), (3710, 77980), (3899, 74200), (4456, 64925), (4900, 59042), (5194, 55700), (5300, 54586), (5570, 51940), (7420, 38990), (7798, 37100), (9275, 31192), (9800, 29521), (10388, 27850), (10600, 27293), (11140, 25970), (12985, 22280), (13925, 20776), (14840, 19495), (15596, 18550)]