218624900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3911}}^1$

素因数の和:3981

約数の個数: 72

約数和(自身を含む): 522924864

約数和(自身を除く): 304299964

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 43, 50, 52, 65, 86, 100, 130, 172, 215, 260, 325, 430, 559, 650, 860, 1075, 1118, 1300, 2150, 2236, 2795, 3911, 4300, 5590, 7822, 11180, 13975, 15644, 19555, 27950, 39110, 50843, 55900, 78220, 97775, 101686, 168173, 195550, 203372, 254215, 336346, 391100, 508430, 672692, 840865, 1016860, 1271075, 1681730, 2186249, 2542150, 3363460, 4204325, 4372498, 5084300, 8408650, 8744996, 10931245, 16817300, 21862490, 43724980, 54656225, 109312450, 218624900]

約数ペア:

[(1, 218624900), (2, 109312450), (4, 54656225), (5, 43724980), (10, 21862490), (13, 16817300), (20, 10931245), (25, 8744996), (26, 8408650), (43, 5084300), (50, 4372498), (52, 4204325), (65, 3363460), (86, 2542150), (100, 2186249), (130, 1681730), (172, 1271075), (215, 1016860), (260, 840865), (325, 672692), (430, 508430), (559, 391100), (650, 336346), (860, 254215), (1075, 203372), (1118, 195550), (1300, 168173), (2150, 101686), (2236, 97775), (2795, 78220), (3911, 55900), (4300, 50843), (5590, 39110), (7822, 27950), (11180, 19555), (13975, 15644)]