25581780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:358

約数の個数: 144

約数和(自身を含む): 90155520

約数和(自身を除く): 64573740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 79, 84, 90, 105, 126, 140, 158, 180, 210, 237, 252, 257, 315, 316, 395, 420, 474, 514, 553, 630, 711, 771, 790, 948, 1028, 1106, 1185, 1260, 1285, 1422, 1542, 1580, 1659, 1799, 2212, 2313, 2370, 2570, 2765, 2844, 3084, 3318, 3555, 3598, 3855, 4626, 4740, 4977, 5140, 5397, 5530, 6636, 7110, 7196, 7710, 8295, 8995, 9252, 9954, 10794, 11060, 11565, 14220, 15420, 16191, 16590, 17990, 19908, 20303, 21588, 23130, 24885, 26985, 32382, 33180, 35980, 40606, 46260, 49770, 53970, 60909, 64764, 80955, 81212, 99540, 101515, 107940, 121818, 142121, 161910, 182727, 203030, 243636, 284242, 304545, 323820, 365454, 406060, 426363, 568484, 609090, 710605, 730908, 852726, 913635, 1218180, 1279089, 1421210, 1705452, 1827270, 2131815, 2558178, 2842420, 3654540, 4263630, 5116356, 6395445, 8527260, 12790890, 25581780]

約数ペア:

[(1, 25581780), (2, 12790890), (3, 8527260), (4, 6395445), (5, 5116356), (6, 4263630), (7, 3654540), (9, 2842420), (10, 2558178), (12, 2131815), (14, 1827270), (15, 1705452), (18, 1421210), (20, 1279089), (21, 1218180), (28, 913635), (30, 852726), (35, 730908), (36, 710605), (42, 609090), (45, 568484), (60, 426363), (63, 406060), (70, 365454), (79, 323820), (84, 304545), (90, 284242), (105, 243636), (126, 203030), (140, 182727), (158, 161910), (180, 142121), (210, 121818), (237, 107940), (252, 101515), (257, 99540), (315, 81212), (316, 80955), (395, 64764), (420, 60909), (474, 53970), (514, 49770), (553, 46260), (630, 40606), (711, 35980), (771, 33180), (790, 32382), (948, 26985), (1028, 24885), (1106, 23130), (1185, 21588), (1260, 20303), (1285, 19908), (1422, 17990), (1542, 16590), (1580, 16191), (1659, 15420), (1799, 14220), (2212, 11565), (2313, 11060), (2370, 10794), (2570, 9954), (2765, 9252), (2844, 8995), (3084, 8295), (3318, 7710), (3555, 7196), (3598, 7110), (3855, 6636), (4626, 5530), (4740, 5397), (4977, 5140)]