205356190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{397}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 418836096

約数和(自身を除く): 213479906

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 173, 230, 299, 346, 397, 598, 794, 865, 1495, 1730, 1985, 2249, 2990, 3970, 3979, 4498, 5161, 7958, 9131, 10322, 11245, 18262, 19895, 22490, 25805, 39790, 45655, 51610, 51727, 68681, 91310, 103454, 118703, 137362, 237406, 258635, 343405, 517270, 593515, 686810, 892853, 1187030, 1579663, 1785706, 3159326, 4464265, 7898315, 8928530, 15796630, 20535619, 41071238, 102678095, 205356190]

約数ペア:

[(1, 205356190), (2, 102678095), (5, 41071238), (10, 20535619), (13, 15796630), (23, 8928530), (26, 7898315), (46, 4464265), (65, 3159326), (115, 1785706), (130, 1579663), (173, 1187030), (230, 892853), (299, 686810), (346, 593515), (397, 517270), (598, 343405), (794, 258635), (865, 237406), (1495, 137362), (1730, 118703), (1985, 103454), (2249, 91310), (2990, 68681), (3970, 51727), (3979, 51610), (4498, 45655), (5161, 39790), (7958, 25805), (9131, 22490), (10322, 19895), (11245, 18262)]