720173580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{244957}}^1$

素因数の和:244983

約数の個数: 72

約数和(自身を含む): 2345717808

約数和(自身を除く): 1625544228

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 244957, 489914, 734871, 979828, 1224785, 1469742, 1714699, 2449570, 2939484, 3429398, 3674355, 4899140, 5144097, 6858796, 7348710, 8573495, 10288194, 12002893, 14697420, 17146990, 20576388, 24005786, 25720485, 34293980, 36008679, 48011572, 51440970, 60014465, 72017358, 102881940, 120028930, 144034716, 180043395, 240057860, 360086790, 720173580]

約数ペア:

[(1, 720173580), (2, 360086790), (3, 240057860), (4, 180043395), (5, 144034716), (6, 120028930), (7, 102881940), (10, 72017358), (12, 60014465), (14, 51440970), (15, 48011572), (20, 36008679), (21, 34293980), (28, 25720485), (30, 24005786), (35, 20576388), (42, 17146990), (49, 14697420), (60, 12002893), (70, 10288194), (84, 8573495), (98, 7348710), (105, 6858796), (140, 5144097), (147, 4899140), (196, 3674355), (210, 3429398), (245, 2939484), (294, 2449570), (420, 1714699), (490, 1469742), (588, 1224785), (735, 979828), (980, 734871), (1470, 489914), (2940, 244957)]