16807680020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{4051}}^1\times {\mathrm{12203}}^1$

素因数の和:16280

約数の個数: 48

約数和(自身を含む): 37384659648

約数和(自身を除く): 20576979628

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 4051, 8102, 12203, 16204, 20255, 24406, 40510, 48812, 61015, 68867, 81020, 122030, 137734, 207451, 244060, 275468, 344335, 414902, 688670, 829804, 1037255, 1377340, 2074510, 4149020, 49434353, 98868706, 197737412, 247171765, 494343530, 840384001, 988687060, 1680768002, 3361536004, 4201920005, 8403840010, 16807680020]

約数ペア:

[(1, 16807680020), (2, 8403840010), (4, 4201920005), (5, 3361536004), (10, 1680768002), (17, 988687060), (20, 840384001), (34, 494343530), (68, 247171765), (85, 197737412), (170, 98868706), (340, 49434353), (4051, 4149020), (8102, 2074510), (12203, 1377340), (16204, 1037255), (20255, 829804), (24406, 688670), (40510, 414902), (48812, 344335), (61015, 275468), (68867, 244060), (81020, 207451), (122030, 137734)]