31872360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20431}}^1$

素因数の和:20458

約数の個数: 64

約数和(自身を含む): 102977280

約数和(自身を除く): 71104920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 20431, 40862, 61293, 81724, 102155, 122586, 163448, 204310, 245172, 265603, 306465, 408620, 490344, 531206, 612930, 796809, 817240, 1062412, 1225860, 1328015, 1593618, 2124824, 2451720, 2656030, 3187236, 3984045, 5312060, 6374472, 7968090, 10624120, 15936180, 31872360]

約数ペア:

[(1, 31872360), (2, 15936180), (3, 10624120), (4, 7968090), (5, 6374472), (6, 5312060), (8, 3984045), (10, 3187236), (12, 2656030), (13, 2451720), (15, 2124824), (20, 1593618), (24, 1328015), (26, 1225860), (30, 1062412), (39, 817240), (40, 796809), (52, 612930), (60, 531206), (65, 490344), (78, 408620), (104, 306465), (120, 265603), (130, 245172), (156, 204310), (195, 163448), (260, 122586), (312, 102155), (390, 81724), (520, 61293), (780, 40862), (1560, 20431)]