251973890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{1399}}^1$

素因数の和:1527

約数の個数: 64

約数和(自身を含む): 541900800

約数和(自身を除く): 289926910

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 83, 155, 166, 217, 310, 415, 434, 581, 830, 1085, 1162, 1399, 2170, 2573, 2798, 2905, 5146, 5810, 6995, 9793, 12865, 13990, 18011, 19586, 25730, 36022, 43369, 48965, 86738, 90055, 97930, 116117, 180110, 216845, 232234, 303583, 433690, 580585, 607166, 812819, 1161170, 1517915, 1625638, 3035830, 3599627, 4064095, 7199254, 8128190, 17998135, 25197389, 35996270, 50394778, 125986945, 251973890]

約数ペア:

[(1, 251973890), (2, 125986945), (5, 50394778), (7, 35996270), (10, 25197389), (14, 17998135), (31, 8128190), (35, 7199254), (62, 4064095), (70, 3599627), (83, 3035830), (155, 1625638), (166, 1517915), (217, 1161170), (310, 812819), (415, 607166), (434, 580585), (581, 433690), (830, 303583), (1085, 232234), (1162, 216845), (1399, 180110), (2170, 116117), (2573, 97930), (2798, 90055), (2905, 86738), (5146, 48965), (5810, 43369), (6995, 36022), (9793, 25730), (12865, 19586), (13990, 18011)]