72436520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139301}}^1$

素因数の和:139325

約数の個数: 32

約数和(自身を含む): 175520520

約数和(自身を除く): 103084000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 139301, 278602, 557204, 696505, 1114408, 1393010, 1810913, 2786020, 3621826, 5572040, 7243652, 9054565, 14487304, 18109130, 36218260, 72436520]

約数ペア:

[(1, 72436520), (2, 36218260), (4, 18109130), (5, 14487304), (8, 9054565), (10, 7243652), (13, 5572040), (20, 3621826), (26, 2786020), (40, 1810913), (52, 1393010), (65, 1114408), (104, 696505), (130, 557204), (260, 278602), (520, 139301)]