20888970064

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{379}}^1\times {\mathrm{111121}}^1$

素因数の和:111539

約数の個数: 40

約数和(自身を含む): 41888549120

約数和(自身を除く): 20999579056

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 379, 496, 758, 1516, 3032, 6064, 11749, 23498, 46996, 93992, 111121, 187984, 222242, 444484, 888968, 1777936, 3444751, 6889502, 13779004, 27558008, 42114859, 55116016, 84229718, 168459436, 336918872, 673837744, 1305560629, 2611121258, 5222242516, 10444485032, 20888970064]

約数ペア:

[(1, 20888970064), (2, 10444485032), (4, 5222242516), (8, 2611121258), (16, 1305560629), (31, 673837744), (62, 336918872), (124, 168459436), (248, 84229718), (379, 55116016), (496, 42114859), (758, 27558008), (1516, 13779004), (3032, 6889502), (6064, 3444751), (11749, 1777936), (23498, 888968), (46996, 444484), (93992, 222242), (111121, 187984)]