28348515

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 56246400

約数和(自身を除く): 27897885

約数列:

[1, 3, 5, 9, 13, 15, 27, 29, 39, 45, 65, 87, 117, 135, 145, 195, 261, 351, 377, 435, 557, 585, 783, 1131, 1305, 1671, 1755, 1885, 2785, 3393, 3915, 5013, 5655, 7241, 8355, 10179, 15039, 16153, 16965, 21723, 25065, 36205, 48459, 50895, 65169, 75195, 80765, 108615, 145377, 195507, 209989, 242295, 325845, 436131, 629967, 726885, 977535, 1049945, 1889901, 2180655, 3149835, 5669703, 9449505, 28348515]

約数ペア:

[(1, 28348515), (3, 9449505), (5, 5669703), (9, 3149835), (13, 2180655), (15, 1889901), (27, 1049945), (29, 977535), (39, 726885), (45, 629967), (65, 436131), (87, 325845), (117, 242295), (135, 209989), (145, 195507), (195, 145377), (261, 108615), (351, 80765), (377, 75195), (435, 65169), (557, 50895), (585, 48459), (783, 36205), (1131, 25065), (1305, 21723), (1671, 16965), (1755, 16153), (1885, 15039), (2785, 10179), (3393, 8355), (3915, 7241), (5013, 5655)]