64207980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20983}}^1$

素因数の和:21015

約数の個数: 72

約数和(自身を含む): 206230752

約数和(自身を除く): 142022772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 3060, 20983, 41966, 62949, 83932, 104915, 125898, 188847, 209830, 251796, 314745, 356711, 377694, 419660, 629490, 713422, 755388, 944235, 1070133, 1258980, 1426844, 1783555, 1888470, 2140266, 3210399, 3567110, 3776940, 4280532, 5350665, 6420798, 7134220, 10701330, 12841596, 16051995, 21402660, 32103990, 64207980]

約数ペア:

[(1, 64207980), (2, 32103990), (3, 21402660), (4, 16051995), (5, 12841596), (6, 10701330), (9, 7134220), (10, 6420798), (12, 5350665), (15, 4280532), (17, 3776940), (18, 3567110), (20, 3210399), (30, 2140266), (34, 1888470), (36, 1783555), (45, 1426844), (51, 1258980), (60, 1070133), (68, 944235), (85, 755388), (90, 713422), (102, 629490), (153, 419660), (170, 377694), (180, 356711), (204, 314745), (255, 251796), (306, 209830), (340, 188847), (510, 125898), (612, 104915), (765, 83932), (1020, 62949), (1530, 41966), (3060, 20983)]