490201900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{367}}^1$

素因数の和:456

約数の個数: 108

約数和(自身を含む): 1156155168

約数和(自身を除く): 665953268

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 37, 38, 50, 74, 76, 95, 100, 148, 185, 190, 361, 367, 370, 380, 475, 703, 722, 734, 740, 925, 950, 1406, 1444, 1468, 1805, 1835, 1850, 1900, 2812, 3515, 3610, 3670, 3700, 6973, 7030, 7220, 7340, 9025, 9175, 13357, 13579, 13946, 14060, 17575, 18050, 18350, 26714, 27158, 27892, 34865, 35150, 36100, 36700, 53428, 54316, 66785, 67895, 69730, 70300, 132487, 133570, 135790, 139460, 174325, 258001, 264974, 267140, 271580, 333925, 339475, 348650, 516002, 529948, 662435, 667850, 678950, 697300, 1032004, 1290005, 1324870, 1335700, 1357900, 2580010, 2649740, 3312175, 4902019, 5160020, 6450025, 6624350, 9804038, 12900050, 13248700, 19608076, 24510095, 25800100, 49020190, 98040380, 122550475, 245100950, 490201900]

約数ペア:

[(1, 490201900), (2, 245100950), (4, 122550475), (5, 98040380), (10, 49020190), (19, 25800100), (20, 24510095), (25, 19608076), (37, 13248700), (38, 12900050), (50, 9804038), (74, 6624350), (76, 6450025), (95, 5160020), (100, 4902019), (148, 3312175), (185, 2649740), (190, 2580010), (361, 1357900), (367, 1335700), (370, 1324870), (380, 1290005), (475, 1032004), (703, 697300), (722, 678950), (734, 667850), (740, 662435), (925, 529948), (950, 516002), (1406, 348650), (1444, 339475), (1468, 333925), (1805, 271580), (1835, 267140), (1850, 264974), (1900, 258001), (2812, 174325), (3515, 139460), (3610, 135790), (3670, 133570), (3700, 132487), (6973, 70300), (7030, 69730), (7220, 67895), (7340, 66785), (9025, 54316), (9175, 53428), (13357, 36700), (13579, 36100), (13946, 35150), (14060, 34865), (17575, 27892), (18050, 27158), (18350, 26714)]