28557750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:163

約数の個数: 128

約数和(自身を含む): 80196480

約数和(自身を除く): 51638730

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 29, 30, 39, 50, 58, 65, 75, 78, 87, 101, 125, 130, 145, 150, 174, 195, 202, 250, 290, 303, 325, 375, 377, 390, 435, 505, 606, 650, 725, 750, 754, 870, 975, 1010, 1131, 1313, 1450, 1515, 1625, 1885, 1950, 2175, 2262, 2525, 2626, 2929, 3030, 3250, 3625, 3770, 3939, 4350, 4875, 5050, 5655, 5858, 6565, 7250, 7575, 7878, 8787, 9425, 9750, 10875, 11310, 12625, 13130, 14645, 15150, 17574, 18850, 19695, 21750, 25250, 28275, 29290, 32825, 37875, 38077, 39390, 43935, 47125, 56550, 65650, 73225, 75750, 76154, 87870, 94250, 98475, 114231, 141375, 146450, 164125, 190385, 196950, 219675, 228462, 282750, 328250, 366125, 380770, 439350, 492375, 571155, 732250, 951925, 984750, 1098375, 1142310, 1903850, 2196750, 2855775, 4759625, 5711550, 9519250, 14278875, 28557750]

約数ペア:

[(1, 28557750), (2, 14278875), (3, 9519250), (5, 5711550), (6, 4759625), (10, 2855775), (13, 2196750), (15, 1903850), (25, 1142310), (26, 1098375), (29, 984750), (30, 951925), (39, 732250), (50, 571155), (58, 492375), (65, 439350), (75, 380770), (78, 366125), (87, 328250), (101, 282750), (125, 228462), (130, 219675), (145, 196950), (150, 190385), (174, 164125), (195, 146450), (202, 141375), (250, 114231), (290, 98475), (303, 94250), (325, 87870), (375, 76154), (377, 75750), (390, 73225), (435, 65650), (505, 56550), (606, 47125), (650, 43935), (725, 39390), (750, 38077), (754, 37875), (870, 32825), (975, 29290), (1010, 28275), (1131, 25250), (1313, 21750), (1450, 19695), (1515, 18850), (1625, 17574), (1885, 15150), (1950, 14645), (2175, 13130), (2262, 12625), (2525, 11310), (2626, 10875), (2929, 9750), (3030, 9425), (3250, 8787), (3625, 7878), (3770, 7575), (3939, 7250), (4350, 6565), (4875, 5858), (5050, 5655)]