30981990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4673}}^1$

素因数の和:4713

約数の個数: 64

約数和(自身を含む): 84805056

約数和(自身を除く): 53823066

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 17, 26, 30, 34, 39, 51, 65, 78, 85, 102, 130, 170, 195, 221, 255, 390, 442, 510, 663, 1105, 1326, 2210, 3315, 4673, 6630, 9346, 14019, 23365, 28038, 46730, 60749, 70095, 79441, 121498, 140190, 158882, 182247, 238323, 303745, 364494, 397205, 476646, 607490, 794410, 911235, 1032733, 1191615, 1822470, 2065466, 2383230, 3098199, 5163665, 6196398, 10327330, 15490995, 30981990]

約数ペア:

[(1, 30981990), (2, 15490995), (3, 10327330), (5, 6196398), (6, 5163665), (10, 3098199), (13, 2383230), (15, 2065466), (17, 1822470), (26, 1191615), (30, 1032733), (34, 911235), (39, 794410), (51, 607490), (65, 476646), (78, 397205), (85, 364494), (102, 303745), (130, 238323), (170, 182247), (195, 158882), (221, 140190), (255, 121498), (390, 79441), (442, 70095), (510, 60749), (663, 46730), (1105, 28038), (1326, 23365), (2210, 14019), (3315, 9346), (4673, 6630)]