2018787890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{10453}}^1$

素因数の和:10587

約数の個数: 64

約数和(自身を含む): 4335482880

約数和(自身を除く): 2316694990

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 89, 155, 178, 217, 310, 434, 445, 623, 890, 1085, 1246, 2170, 2759, 3115, 5518, 6230, 10453, 13795, 19313, 20906, 27590, 38626, 52265, 73171, 96565, 104530, 146342, 193130, 324043, 365855, 648086, 731710, 930317, 1620215, 1860634, 2268301, 3240430, 4536602, 4651585, 6512219, 9303170, 11341505, 13024438, 22683010, 28839827, 32561095, 57679654, 65122190, 144199135, 201878789, 288398270, 403757578, 1009393945, 2018787890]

約数ペア:

[(1, 2018787890), (2, 1009393945), (5, 403757578), (7, 288398270), (10, 201878789), (14, 144199135), (31, 65122190), (35, 57679654), (62, 32561095), (70, 28839827), (89, 22683010), (155, 13024438), (178, 11341505), (217, 9303170), (310, 6512219), (434, 4651585), (445, 4536602), (623, 3240430), (890, 2268301), (1085, 1860634), (1246, 1620215), (2170, 930317), (2759, 731710), (3115, 648086), (5518, 365855), (6230, 324043), (10453, 193130), (13795, 146342), (19313, 104530), (20906, 96565), (27590, 73171), (38626, 52265)]