72116640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{821}}^1$

素因数の和:903

約数の個数: 144

約数和(自身を含む): 250437096

約数和(自身を除く): 178320456

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 61, 72, 80, 90, 96, 120, 122, 144, 160, 180, 183, 240, 244, 288, 305, 360, 366, 480, 488, 549, 610, 720, 732, 821, 915, 976, 1098, 1220, 1440, 1464, 1642, 1830, 1952, 2196, 2440, 2463, 2745, 2928, 3284, 3660, 4105, 4392, 4880, 4926, 5490, 5856, 6568, 7320, 7389, 8210, 8784, 9760, 9852, 10980, 12315, 13136, 14640, 14778, 16420, 17568, 19704, 21960, 24630, 26272, 29280, 29556, 32840, 36945, 39408, 43920, 49260, 50081, 59112, 65680, 73890, 78816, 87840, 98520, 100162, 118224, 131360, 147780, 150243, 197040, 200324, 236448, 250405, 295560, 300486, 394080, 400648, 450729, 500810, 591120, 600972, 751215, 801296, 901458, 1001620, 1182240, 1201944, 1502430, 1602592, 1802916, 2003240, 2253645, 2403888, 3004860, 3605832, 4006480, 4507290, 4807776, 6009720, 7211664, 8012960, 9014580, 12019440, 14423328, 18029160, 24038880, 36058320, 72116640]

約数ペア:

[(1, 72116640), (2, 36058320), (3, 24038880), (4, 18029160), (5, 14423328), (6, 12019440), (8, 9014580), (9, 8012960), (10, 7211664), (12, 6009720), (15, 4807776), (16, 4507290), (18, 4006480), (20, 3605832), (24, 3004860), (30, 2403888), (32, 2253645), (36, 2003240), (40, 1802916), (45, 1602592), (48, 1502430), (60, 1201944), (61, 1182240), (72, 1001620), (80, 901458), (90, 801296), (96, 751215), (120, 600972), (122, 591120), (144, 500810), (160, 450729), (180, 400648), (183, 394080), (240, 300486), (244, 295560), (288, 250405), (305, 236448), (360, 200324), (366, 197040), (480, 150243), (488, 147780), (549, 131360), (610, 118224), (720, 100162), (732, 98520), (821, 87840), (915, 78816), (976, 73890), (1098, 65680), (1220, 59112), (1440, 50081), (1464, 49260), (1642, 43920), (1830, 39408), (1952, 36945), (2196, 32840), (2440, 29556), (2463, 29280), (2745, 26272), (2928, 24630), (3284, 21960), (3660, 19704), (4105, 17568), (4392, 16420), (4880, 14778), (4926, 14640), (5490, 13136), (5856, 12315), (6568, 10980), (7320, 9852), (7389, 9760), (8210, 8784)]