31800795

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 59439744

約数和(自身を除く): 27638949

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 53, 65, 85, 159, 181, 195, 221, 255, 265, 543, 663, 689, 795, 901, 905, 1105, 2067, 2353, 2703, 2715, 3077, 3315, 3445, 4505, 7059, 9231, 9593, 10335, 11713, 11765, 13515, 15385, 28779, 35139, 35295, 40001, 46155, 47965, 58565, 120003, 124709, 143895, 163081, 175695, 200005, 374127, 489243, 600015, 623545, 815405, 1870635, 2120053, 2446215, 6360159, 10600265, 31800795]

約数ペア:

[(1, 31800795), (3, 10600265), (5, 6360159), (13, 2446215), (15, 2120053), (17, 1870635), (39, 815405), (51, 623545), (53, 600015), (65, 489243), (85, 374127), (159, 200005), (181, 175695), (195, 163081), (221, 143895), (255, 124709), (265, 120003), (543, 58565), (663, 47965), (689, 46155), (795, 40001), (901, 35295), (905, 35139), (1105, 28779), (2067, 15385), (2353, 13515), (2703, 11765), (2715, 11713), (3077, 10335), (3315, 9593), (3445, 9231), (4505, 7059)]