28909020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{9833}}^1$

素因数の和:9859

約数の個数: 72

約数和(自身を含む): 94170384

約数和(自身を除く): 65261364

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 9833, 19666, 29499, 39332, 49165, 58998, 68831, 98330, 117996, 137662, 147495, 196660, 206493, 275324, 294990, 344155, 412986, 481817, 589980, 688310, 825972, 963634, 1032465, 1376620, 1445451, 1927268, 2064930, 2409085, 2890902, 4129860, 4818170, 5781804, 7227255, 9636340, 14454510, 28909020]

約数ペア:

[(1, 28909020), (2, 14454510), (3, 9636340), (4, 7227255), (5, 5781804), (6, 4818170), (7, 4129860), (10, 2890902), (12, 2409085), (14, 2064930), (15, 1927268), (20, 1445451), (21, 1376620), (28, 1032465), (30, 963634), (35, 825972), (42, 688310), (49, 589980), (60, 481817), (70, 412986), (84, 344155), (98, 294990), (105, 275324), (140, 206493), (147, 196660), (196, 147495), (210, 137662), (245, 117996), (294, 98330), (420, 68831), (490, 58998), (588, 49165), (735, 39332), (980, 29499), (1470, 19666), (2940, 9833)]