30003980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 69627600

約数和(自身を除く): 39623620

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 179, 289, 290, 340, 358, 493, 578, 580, 716, 895, 986, 1156, 1445, 1790, 1972, 2465, 2890, 3043, 3580, 4930, 5191, 5780, 6086, 8381, 9860, 10382, 12172, 15215, 16762, 20764, 25955, 30430, 33524, 41905, 51731, 51910, 60860, 83810, 88247, 103462, 103820, 167620, 176494, 206924, 258655, 352988, 441235, 517310, 882470, 1034620, 1500199, 1764940, 3000398, 6000796, 7500995, 15001990, 30003980]

約数ペア:

[(1, 30003980), (2, 15001990), (4, 7500995), (5, 6000796), (10, 3000398), (17, 1764940), (20, 1500199), (29, 1034620), (34, 882470), (58, 517310), (68, 441235), (85, 352988), (116, 258655), (145, 206924), (170, 176494), (179, 167620), (289, 103820), (290, 103462), (340, 88247), (358, 83810), (493, 60860), (578, 51910), (580, 51731), (716, 41905), (895, 33524), (986, 30430), (1156, 25955), (1445, 20764), (1790, 16762), (1972, 15215), (2465, 12172), (2890, 10382), (3043, 9860), (3580, 8381), (4930, 6086), (5191, 5780)]