72438120

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{647}}^1$

素因数の和:975

約数の個数: 96

約数和(自身を含む): 236545920

約数和(自身を除く): 164107800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 311, 360, 622, 647, 933, 1244, 1294, 1555, 1866, 1941, 2488, 2588, 2799, 3110, 3235, 3732, 3882, 4665, 5176, 5598, 5823, 6220, 6470, 7464, 7764, 9330, 9705, 11196, 11646, 12440, 12940, 13995, 15528, 18660, 19410, 22392, 23292, 25880, 27990, 29115, 37320, 38820, 46584, 55980, 58230, 77640, 111960, 116460, 201217, 232920, 402434, 603651, 804868, 1006085, 1207302, 1609736, 1810953, 2012170, 2414604, 3018255, 3621906, 4024340, 4829208, 6036510, 7243812, 8048680, 9054765, 12073020, 14487624, 18109530, 24146040, 36219060, 72438120]

約数ペア:

[(1, 72438120), (2, 36219060), (3, 24146040), (4, 18109530), (5, 14487624), (6, 12073020), (8, 9054765), (9, 8048680), (10, 7243812), (12, 6036510), (15, 4829208), (18, 4024340), (20, 3621906), (24, 3018255), (30, 2414604), (36, 2012170), (40, 1810953), (45, 1609736), (60, 1207302), (72, 1006085), (90, 804868), (120, 603651), (180, 402434), (311, 232920), (360, 201217), (622, 116460), (647, 111960), (933, 77640), (1244, 58230), (1294, 55980), (1555, 46584), (1866, 38820), (1941, 37320), (2488, 29115), (2588, 27990), (2799, 25880), (3110, 23292), (3235, 22392), (3732, 19410), (3882, 18660), (4665, 15528), (5176, 13995), (5598, 12940), (5823, 12440), (6220, 11646), (6470, 11196), (7464, 9705), (7764, 9330)]