20145880130

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1\times {\mathrm{2029}}^1$

素因数の和:2535

約数の個数: 64

約数和(自身を含む): 37869763680

約数和(自身を除く): 17723883550

約数列:

[1, 2, 5, 10, 41, 61, 82, 122, 205, 305, 397, 410, 610, 794, 1985, 2029, 2501, 3970, 4058, 5002, 10145, 12505, 16277, 20290, 24217, 25010, 32554, 48434, 81385, 83189, 121085, 123769, 162770, 166378, 242170, 247538, 415945, 618845, 805513, 831890, 992897, 1237690, 1611026, 1985794, 4027565, 4964485, 5074529, 8055130, 9928970, 10149058, 25372645, 33026033, 49136293, 50745290, 66052066, 98272586, 165130165, 245681465, 330260330, 491362930, 2014588013, 4029176026, 10072940065, 20145880130]

約数ペア:

[(1, 20145880130), (2, 10072940065), (5, 4029176026), (10, 2014588013), (41, 491362930), (61, 330260330), (82, 245681465), (122, 165130165), (205, 98272586), (305, 66052066), (397, 50745290), (410, 49136293), (610, 33026033), (794, 25372645), (1985, 10149058), (2029, 9928970), (2501, 8055130), (3970, 5074529), (4058, 4964485), (5002, 4027565), (10145, 1985794), (12505, 1611026), (16277, 1237690), (20290, 992897), (24217, 831890), (25010, 805513), (32554, 618845), (48434, 415945), (81385, 247538), (83189, 242170), (121085, 166378), (123769, 162770)]