209532990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{17863}}^1$

素因数の和:17913

約数の個数: 64

約数和(自身を含む): 555641856

約数和(自身を除く): 346108866

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 23, 30, 34, 46, 51, 69, 85, 102, 115, 138, 170, 230, 255, 345, 391, 510, 690, 782, 1173, 1955, 2346, 3910, 5865, 11730, 17863, 35726, 53589, 89315, 107178, 178630, 267945, 303671, 410849, 535890, 607342, 821698, 911013, 1232547, 1518355, 1822026, 2054245, 2465094, 3036710, 4108490, 4555065, 6162735, 6984433, 9110130, 12325470, 13968866, 20953299, 34922165, 41906598, 69844330, 104766495, 209532990]

約数ペア:

[(1, 209532990), (2, 104766495), (3, 69844330), (5, 41906598), (6, 34922165), (10, 20953299), (15, 13968866), (17, 12325470), (23, 9110130), (30, 6984433), (34, 6162735), (46, 4555065), (51, 4108490), (69, 3036710), (85, 2465094), (102, 2054245), (115, 1822026), (138, 1518355), (170, 1232547), (230, 911013), (255, 821698), (345, 607342), (391, 535890), (510, 410849), (690, 303671), (782, 267945), (1173, 178630), (1955, 107178), (2346, 89315), (3910, 53589), (5865, 35726), (11730, 17863)]