257993580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{937}}^1$

素因数の和:1315

約数の個数: 96

約数和(自身を含む): 780986304

約数和(自身を除く): 522992724

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 353, 390, 706, 780, 937, 1059, 1412, 1765, 1874, 2118, 2811, 3530, 3748, 4236, 4589, 4685, 5295, 5622, 7060, 9178, 9370, 10590, 11244, 12181, 13767, 14055, 18356, 18740, 21180, 22945, 24362, 27534, 28110, 36543, 45890, 48724, 55068, 56220, 60905, 68835, 73086, 91780, 121810, 137670, 146172, 182715, 243620, 275340, 330761, 365430, 661522, 730860, 992283, 1323044, 1653805, 1984566, 3307610, 3969132, 4299893, 4961415, 6615220, 8599786, 9922830, 12899679, 17199572, 19845660, 21499465, 25799358, 42998930, 51598716, 64498395, 85997860, 128996790, 257993580]

約数ペア:

[(1, 257993580), (2, 128996790), (3, 85997860), (4, 64498395), (5, 51598716), (6, 42998930), (10, 25799358), (12, 21499465), (13, 19845660), (15, 17199572), (20, 12899679), (26, 9922830), (30, 8599786), (39, 6615220), (52, 4961415), (60, 4299893), (65, 3969132), (78, 3307610), (130, 1984566), (156, 1653805), (195, 1323044), (260, 992283), (353, 730860), (390, 661522), (706, 365430), (780, 330761), (937, 275340), (1059, 243620), (1412, 182715), (1765, 146172), (1874, 137670), (2118, 121810), (2811, 91780), (3530, 73086), (3748, 68835), (4236, 60905), (4589, 56220), (4685, 55068), (5295, 48724), (5622, 45890), (7060, 36543), (9178, 28110), (9370, 27534), (10590, 24362), (11244, 22945), (12181, 21180), (13767, 18740), (14055, 18356)]