128128980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{305069}}^1$

素因数の和:305088

約数の個数: 48

約数和(自身を含む): 410014080

約数和(自身を除く): 281885100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 305069, 610138, 915207, 1220276, 1525345, 1830414, 2135483, 3050690, 3660828, 4270966, 4576035, 6101380, 6406449, 8541932, 9152070, 10677415, 12812898, 18304140, 21354830, 25625796, 32032245, 42709660, 64064490, 128128980]

約数ペア:

[(1, 128128980), (2, 64064490), (3, 42709660), (4, 32032245), (5, 25625796), (6, 21354830), (7, 18304140), (10, 12812898), (12, 10677415), (14, 9152070), (15, 8541932), (20, 6406449), (21, 6101380), (28, 4576035), (30, 4270966), (35, 3660828), (42, 3050690), (60, 2135483), (70, 1830414), (84, 1525345), (105, 1220276), (140, 915207), (210, 610138), (420, 305069)]