77392980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:518

約数の個数: 144

約数和(自身を含む): 270466560

約数和(自身を除く): 193073580

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 239, 252, 257, 315, 420, 478, 514, 630, 717, 771, 956, 1028, 1195, 1260, 1285, 1434, 1542, 1673, 1799, 2151, 2313, 2390, 2570, 2868, 3084, 3346, 3585, 3598, 3855, 4302, 4626, 4780, 5019, 5140, 5397, 6692, 7170, 7196, 7710, 8365, 8604, 8995, 9252, 10038, 10755, 10794, 11565, 14340, 15057, 15420, 16191, 16730, 17990, 20076, 21510, 21588, 23130, 25095, 26985, 30114, 32382, 33460, 35980, 43020, 46260, 50190, 53970, 60228, 61423, 64764, 75285, 80955, 100380, 107940, 122846, 150570, 161910, 184269, 245692, 301140, 307115, 323820, 368538, 429961, 552807, 614230, 737076, 859922, 921345, 1105614, 1228460, 1289883, 1719844, 1842690, 2149805, 2211228, 2579766, 2764035, 3685380, 3869649, 4299610, 5159532, 5528070, 6449415, 7739298, 8599220, 11056140, 12898830, 15478596, 19348245, 25797660, 38696490, 77392980]

約数ペア:

[(1, 77392980), (2, 38696490), (3, 25797660), (4, 19348245), (5, 15478596), (6, 12898830), (7, 11056140), (9, 8599220), (10, 7739298), (12, 6449415), (14, 5528070), (15, 5159532), (18, 4299610), (20, 3869649), (21, 3685380), (28, 2764035), (30, 2579766), (35, 2211228), (36, 2149805), (42, 1842690), (45, 1719844), (60, 1289883), (63, 1228460), (70, 1105614), (84, 921345), (90, 859922), (105, 737076), (126, 614230), (140, 552807), (180, 429961), (210, 368538), (239, 323820), (252, 307115), (257, 301140), (315, 245692), (420, 184269), (478, 161910), (514, 150570), (630, 122846), (717, 107940), (771, 100380), (956, 80955), (1028, 75285), (1195, 64764), (1260, 61423), (1285, 60228), (1434, 53970), (1542, 50190), (1673, 46260), (1799, 43020), (2151, 35980), (2313, 33460), (2390, 32382), (2570, 30114), (2868, 26985), (3084, 25095), (3346, 23130), (3585, 21588), (3598, 21510), (3855, 20076), (4302, 17990), (4626, 16730), (4780, 16191), (5019, 15420), (5140, 15057), (5397, 14340), (6692, 11565), (7170, 10794), (7196, 10755), (7710, 10038), (8365, 9252), (8604, 8995)]