19005622640

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1312543}}^1$

素因数の和:1312737

約数の個数: 40

約数和(自身を含む): 44432239488

約数和(自身を除く): 25426616848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 14480, 1312543, 2625086, 5250172, 6562715, 10500344, 13125430, 21000688, 26250860, 52501720, 105003440, 237570283, 475140566, 950281132, 1187851415, 1900562264, 2375702830, 3801124528, 4751405660, 9502811320, 19005622640]

約数ペア:

[(1, 19005622640), (2, 9502811320), (4, 4751405660), (5, 3801124528), (8, 2375702830), (10, 1900562264), (16, 1187851415), (20, 950281132), (40, 475140566), (80, 237570283), (181, 105003440), (362, 52501720), (724, 26250860), (905, 21000688), (1448, 13125430), (1810, 10500344), (2896, 6562715), (3620, 5250172), (7240, 2625086), (14480, 1312543)]