19391970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2617}}^1$

素因数の和:2659

約数の個数: 64

約数和(自身を含む): 52778880

約数和(自身を除く): 33386910

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 57, 65, 78, 95, 114, 130, 190, 195, 247, 285, 390, 494, 570, 741, 1235, 1482, 2470, 2617, 3705, 5234, 7410, 7851, 13085, 15702, 26170, 34021, 39255, 49723, 68042, 78510, 99446, 102063, 149169, 170105, 204126, 248615, 298338, 340210, 497230, 510315, 646399, 745845, 1020630, 1292798, 1491690, 1939197, 3231995, 3878394, 6463990, 9695985, 19391970]

約数ペア:

[(1, 19391970), (2, 9695985), (3, 6463990), (5, 3878394), (6, 3231995), (10, 1939197), (13, 1491690), (15, 1292798), (19, 1020630), (26, 745845), (30, 646399), (38, 510315), (39, 497230), (57, 340210), (65, 298338), (78, 248615), (95, 204126), (114, 170105), (130, 149169), (190, 102063), (195, 99446), (247, 78510), (285, 68042), (390, 49723), (494, 39255), (570, 34021), (741, 26170), (1235, 15702), (1482, 13085), (2470, 7851), (2617, 7410), (3705, 5234)]