128545300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1621}}^1$

素因数の和:1709

約数の個数: 72

約数和(自身を含む): 305513432

約数和(自身を除く): 176968132

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 61, 65, 100, 122, 130, 244, 260, 305, 325, 610, 650, 793, 1220, 1300, 1525, 1586, 1621, 3050, 3172, 3242, 3965, 6100, 6484, 7930, 8105, 15860, 16210, 19825, 21073, 32420, 39650, 40525, 42146, 79300, 81050, 84292, 98881, 105365, 162100, 197762, 210730, 395524, 421460, 494405, 526825, 988810, 1053650, 1285453, 1977620, 2107300, 2472025, 2570906, 4944050, 5141812, 6427265, 9888100, 12854530, 25709060, 32136325, 64272650, 128545300]

約数ペア:

[(1, 128545300), (2, 64272650), (4, 32136325), (5, 25709060), (10, 12854530), (13, 9888100), (20, 6427265), (25, 5141812), (26, 4944050), (50, 2570906), (52, 2472025), (61, 2107300), (65, 1977620), (100, 1285453), (122, 1053650), (130, 988810), (244, 526825), (260, 494405), (305, 421460), (325, 395524), (610, 210730), (650, 197762), (793, 162100), (1220, 105365), (1300, 98881), (1525, 84292), (1586, 81050), (1621, 79300), (3050, 42146), (3172, 40525), (3242, 39650), (3965, 32420), (6100, 21073), (6484, 19825), (7930, 16210), (8105, 15860)]