42728420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1277}}^1$

素因数の和:1532

約数の個数: 48

約数和(自身を含む): 103057920

約数和(自身を除く): 60329500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 956, 1195, 1277, 1673, 2390, 2554, 3346, 4780, 5108, 6385, 6692, 8365, 8939, 12770, 16730, 17878, 25540, 33460, 35756, 44695, 89390, 178780, 305203, 610406, 1220812, 1526015, 2136421, 3052030, 4272842, 6104060, 8545684, 10682105, 21364210, 42728420]

約数ペア:

[(1, 42728420), (2, 21364210), (4, 10682105), (5, 8545684), (7, 6104060), (10, 4272842), (14, 3052030), (20, 2136421), (28, 1526015), (35, 1220812), (70, 610406), (140, 305203), (239, 178780), (478, 89390), (956, 44695), (1195, 35756), (1277, 33460), (1673, 25540), (2390, 17878), (2554, 16730), (3346, 12770), (4780, 8939), (5108, 8365), (6385, 6692)]