20873580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3823}}^1$

素因数の和:3855

約数の個数: 96

約数和(自身を含む): 71952384

約数和(自身を除く): 51078804

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 3823, 5460, 7646, 11469, 15292, 19115, 22938, 26761, 38230, 45876, 49699, 53522, 57345, 76460, 80283, 99398, 107044, 114690, 133805, 149097, 160566, 198796, 229380, 248495, 267610, 298194, 321132, 347893, 401415, 496990, 535220, 596388, 695786, 745485, 802830, 993980, 1043679, 1391572, 1490970, 1605660, 1739465, 2087358, 2981940, 3478930, 4174716, 5218395, 6957860, 10436790, 20873580]

約数ペア:

[(1, 20873580), (2, 10436790), (3, 6957860), (4, 5218395), (5, 4174716), (6, 3478930), (7, 2981940), (10, 2087358), (12, 1739465), (13, 1605660), (14, 1490970), (15, 1391572), (20, 1043679), (21, 993980), (26, 802830), (28, 745485), (30, 695786), (35, 596388), (39, 535220), (42, 496990), (52, 401415), (60, 347893), (65, 321132), (70, 298194), (78, 267610), (84, 248495), (91, 229380), (105, 198796), (130, 160566), (140, 149097), (156, 133805), (182, 114690), (195, 107044), (210, 99398), (260, 80283), (273, 76460), (364, 57345), (390, 53522), (420, 49699), (455, 45876), (546, 38230), (780, 26761), (910, 22938), (1092, 19115), (1365, 15292), (1820, 11469), (2730, 7646), (3823, 5460)]