64380220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{809}}^1$

素因数の和:1014

約数の個数: 48

約数和(自身を含む): 142067520

約数和(自身を除く): 77687300

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 173, 230, 346, 460, 692, 809, 865, 1618, 1730, 3236, 3460, 3979, 4045, 7958, 8090, 15916, 16180, 18607, 19895, 37214, 39790, 74428, 79580, 93035, 139957, 186070, 279914, 372140, 559828, 699785, 1399570, 2799140, 3219011, 6438022, 12876044, 16095055, 32190110, 64380220]

約数ペア:

[(1, 64380220), (2, 32190110), (4, 16095055), (5, 12876044), (10, 6438022), (20, 3219011), (23, 2799140), (46, 1399570), (92, 699785), (115, 559828), (173, 372140), (230, 279914), (346, 186070), (460, 139957), (692, 93035), (809, 79580), (865, 74428), (1618, 39790), (1730, 37214), (3236, 19895), (3460, 18607), (3979, 16180), (4045, 15916), (7958, 8090)]