212980300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{947}}^1$

素因数の和:1147

約数の個数: 72

約数和(自身を含む): 501124176

約数和(自身を除く): 288143876

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 173, 260, 325, 346, 650, 692, 865, 947, 1300, 1730, 1894, 2249, 3460, 3788, 4325, 4498, 4735, 8650, 8996, 9470, 11245, 12311, 17300, 18940, 22490, 23675, 24622, 44980, 47350, 49244, 56225, 61555, 94700, 112450, 123110, 163831, 224900, 246220, 307775, 327662, 615550, 655324, 819155, 1231100, 1638310, 2129803, 3276620, 4095775, 4259606, 8191550, 8519212, 10649015, 16383100, 21298030, 42596060, 53245075, 106490150, 212980300]

約数ペア:

[(1, 212980300), (2, 106490150), (4, 53245075), (5, 42596060), (10, 21298030), (13, 16383100), (20, 10649015), (25, 8519212), (26, 8191550), (50, 4259606), (52, 4095775), (65, 3276620), (100, 2129803), (130, 1638310), (173, 1231100), (260, 819155), (325, 655324), (346, 615550), (650, 327662), (692, 307775), (865, 246220), (947, 224900), (1300, 163831), (1730, 123110), (1894, 112450), (2249, 94700), (3460, 61555), (3788, 56225), (4325, 49244), (4498, 47350), (4735, 44980), (8650, 24622), (8996, 23675), (9470, 22490), (11245, 18940), (12311, 17300)]