20199555860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1505183}}^1$

素因数の和:1505264

約数の個数: 48

約数和(自身を含む): 47033989632

約数和(自身を除く): 26834433772

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 61, 110, 122, 220, 244, 305, 610, 671, 1220, 1342, 2684, 3355, 6710, 13420, 1505183, 3010366, 6020732, 7525915, 15051830, 16557013, 30103660, 33114026, 66228052, 82785065, 91816163, 165570130, 183632326, 331140260, 367264652, 459080815, 918161630, 1009977793, 1836323260, 2019955586, 4039911172, 5049888965, 10099777930, 20199555860]

約数ペア:

[(1, 20199555860), (2, 10099777930), (4, 5049888965), (5, 4039911172), (10, 2019955586), (11, 1836323260), (20, 1009977793), (22, 918161630), (44, 459080815), (55, 367264652), (61, 331140260), (110, 183632326), (122, 165570130), (220, 91816163), (244, 82785065), (305, 66228052), (610, 33114026), (671, 30103660), (1220, 16557013), (1342, 15051830), (2684, 7525915), (3355, 6020732), (6710, 3010366), (13420, 1505183)]