19814625

素因数分解:

$3^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:149

約数の個数: 80

約数和(自身を含む): 39262080

約数和(自身を除く): 19447455

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 103, 125, 135, 171, 225, 285, 309, 375, 405, 475, 513, 515, 675, 855, 927, 1125, 1425, 1539, 1545, 1957, 2025, 2375, 2565, 2575, 2781, 3375, 4275, 4635, 5871, 7125, 7695, 7725, 8343, 9785, 10125, 12825, 12875, 13905, 17613, 21375, 23175, 29355, 38475, 38625, 41715, 48925, 52839, 64125, 69525, 88065, 115875, 146775, 158517, 192375, 208575, 244625, 264195, 347625, 440325, 733875, 792585, 1042875, 1320975, 2201625, 3962925, 6604875, 19814625]

約数ペア:

[(1, 19814625), (3, 6604875), (5, 3962925), (9, 2201625), (15, 1320975), (19, 1042875), (25, 792585), (27, 733875), (45, 440325), (57, 347625), (75, 264195), (81, 244625), (95, 208575), (103, 192375), (125, 158517), (135, 146775), (171, 115875), (225, 88065), (285, 69525), (309, 64125), (375, 52839), (405, 48925), (475, 41715), (513, 38625), (515, 38475), (675, 29355), (855, 23175), (927, 21375), (1125, 17613), (1425, 13905), (1539, 12875), (1545, 12825), (1957, 10125), (2025, 9785), (2375, 8343), (2565, 7725), (2575, 7695), (2781, 7125), (3375, 5871), (4275, 4635)]