215417840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{4013}}^1$

素因数の和:4098

約数の個数: 80

約数和(自身を含む): 555473376

約数和(自身を除く): 340055536

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 61, 80, 88, 110, 122, 176, 220, 244, 305, 440, 488, 610, 671, 880, 976, 1220, 1342, 2440, 2684, 3355, 4013, 4880, 5368, 6710, 8026, 10736, 13420, 16052, 20065, 26840, 32104, 40130, 44143, 53680, 64208, 80260, 88286, 160520, 176572, 220715, 244793, 321040, 353144, 441430, 489586, 706288, 882860, 979172, 1223965, 1765720, 1958344, 2447930, 2692723, 3531440, 3916688, 4895860, 5385446, 9791720, 10770892, 13463615, 19583440, 21541784, 26927230, 43083568, 53854460, 107708920, 215417840]

約数ペア:

[(1, 215417840), (2, 107708920), (4, 53854460), (5, 43083568), (8, 26927230), (10, 21541784), (11, 19583440), (16, 13463615), (20, 10770892), (22, 9791720), (40, 5385446), (44, 4895860), (55, 3916688), (61, 3531440), (80, 2692723), (88, 2447930), (110, 1958344), (122, 1765720), (176, 1223965), (220, 979172), (244, 882860), (305, 706288), (440, 489586), (488, 441430), (610, 353144), (671, 321040), (880, 244793), (976, 220715), (1220, 176572), (1342, 160520), (2440, 88286), (2684, 80260), (3355, 64208), (4013, 53680), (4880, 44143), (5368, 40130), (6710, 32104), (8026, 26840), (10736, 20065), (13420, 16052)]