18739500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:97

約数の個数: 144

約数和(自身を含む): 60723936

約数和(自身を除く): 41984436

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 31, 39, 50, 52, 60, 62, 65, 75, 78, 93, 100, 124, 125, 130, 150, 155, 156, 186, 195, 250, 260, 300, 310, 325, 372, 375, 390, 403, 465, 500, 620, 650, 750, 775, 780, 806, 930, 961, 975, 1209, 1300, 1500, 1550, 1612, 1625, 1860, 1922, 1950, 2015, 2325, 2418, 2883, 3100, 3250, 3844, 3875, 3900, 4030, 4650, 4805, 4836, 4875, 5766, 6045, 6500, 7750, 8060, 9300, 9610, 9750, 10075, 11532, 11625, 12090, 12493, 14415, 15500, 19220, 19500, 20150, 23250, 24025, 24180, 24986, 28830, 30225, 37479, 40300, 46500, 48050, 49972, 50375, 57660, 60450, 62465, 72075, 74958, 96100, 100750, 120125, 120900, 124930, 144150, 149916, 151125, 187395, 201500, 240250, 249860, 288300, 302250, 312325, 360375, 374790, 480500, 604500, 624650, 720750, 749580, 936975, 1249300, 1441500, 1561625, 1873950, 3123250, 3747900, 4684875, 6246500, 9369750, 18739500]

約数ペア:

[(1, 18739500), (2, 9369750), (3, 6246500), (4, 4684875), (5, 3747900), (6, 3123250), (10, 1873950), (12, 1561625), (13, 1441500), (15, 1249300), (20, 936975), (25, 749580), (26, 720750), (30, 624650), (31, 604500), (39, 480500), (50, 374790), (52, 360375), (60, 312325), (62, 302250), (65, 288300), (75, 249860), (78, 240250), (93, 201500), (100, 187395), (124, 151125), (125, 149916), (130, 144150), (150, 124930), (155, 120900), (156, 120125), (186, 100750), (195, 96100), (250, 74958), (260, 72075), (300, 62465), (310, 60450), (325, 57660), (372, 50375), (375, 49972), (390, 48050), (403, 46500), (465, 40300), (500, 37479), (620, 30225), (650, 28830), (750, 24986), (775, 24180), (780, 24025), (806, 23250), (930, 20150), (961, 19500), (975, 19220), (1209, 15500), (1300, 14415), (1500, 12493), (1550, 12090), (1612, 11625), (1625, 11532), (1860, 10075), (1922, 9750), (1950, 9610), (2015, 9300), (2325, 8060), (2418, 7750), (2883, 6500), (3100, 6045), (3250, 5766), (3844, 4875), (3875, 4836), (3900, 4805), (4030, 4650)]