19902690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:248

約数の個数: 96

約数和(自身を含む): 55486080

約数和(自身を除く): 35583390

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 103, 113, 114, 171, 190, 206, 226, 285, 309, 339, 342, 515, 565, 570, 618, 678, 855, 927, 1017, 1030, 1130, 1545, 1695, 1710, 1854, 1957, 2034, 2147, 3090, 3390, 3914, 4294, 4635, 5085, 5871, 6441, 9270, 9785, 10170, 10735, 11639, 11742, 12882, 17613, 19323, 19570, 21470, 23278, 29355, 32205, 34917, 35226, 38646, 58195, 58710, 64410, 69834, 88065, 96615, 104751, 116390, 174585, 176130, 193230, 209502, 221141, 349170, 442282, 523755, 663423, 1047510, 1105705, 1326846, 1990269, 2211410, 3317115, 3980538, 6634230, 9951345, 19902690]

約数ペア:

[(1, 19902690), (2, 9951345), (3, 6634230), (5, 3980538), (6, 3317115), (9, 2211410), (10, 1990269), (15, 1326846), (18, 1105705), (19, 1047510), (30, 663423), (38, 523755), (45, 442282), (57, 349170), (90, 221141), (95, 209502), (103, 193230), (113, 176130), (114, 174585), (171, 116390), (190, 104751), (206, 96615), (226, 88065), (285, 69834), (309, 64410), (339, 58710), (342, 58195), (515, 38646), (565, 35226), (570, 34917), (618, 32205), (678, 29355), (855, 23278), (927, 21470), (1017, 19570), (1030, 19323), (1130, 17613), (1545, 12882), (1695, 11742), (1710, 11639), (1854, 10735), (1957, 10170), (2034, 9785), (2147, 9270), (3090, 6441), (3390, 5871), (3914, 5085), (4294, 4635)]