31920380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{503}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 71124480

約数和(自身を除く): 39204100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 167, 190, 334, 380, 503, 668, 835, 1006, 1670, 2012, 2515, 3173, 3340, 5030, 6346, 9557, 10060, 12692, 15865, 19114, 31730, 38228, 47785, 63460, 84001, 95570, 168002, 191140, 336004, 420005, 840010, 1596019, 1680020, 3192038, 6384076, 7980095, 15960190, 31920380]

約数ペア:

[(1, 31920380), (2, 15960190), (4, 7980095), (5, 6384076), (10, 3192038), (19, 1680020), (20, 1596019), (38, 840010), (76, 420005), (95, 336004), (167, 191140), (190, 168002), (334, 95570), (380, 84001), (503, 63460), (668, 47785), (835, 38228), (1006, 31730), (1670, 19114), (2012, 15865), (2515, 12692), (3173, 10060), (3340, 9557), (5030, 6346)]