161421720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{853}}^1$

素因数の和:969

約数の個数: 128

約数和(自身を含む): 516499200

約数和(自身を除く): 355077480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 83, 95, 114, 120, 152, 166, 190, 228, 249, 285, 332, 380, 415, 456, 498, 570, 664, 760, 830, 853, 996, 1140, 1245, 1577, 1660, 1706, 1992, 2280, 2490, 2559, 3154, 3320, 3412, 4265, 4731, 4980, 5118, 6308, 6824, 7885, 8530, 9462, 9960, 10236, 12616, 12795, 15770, 16207, 17060, 18924, 20472, 23655, 25590, 31540, 32414, 34120, 37848, 47310, 48621, 51180, 63080, 64828, 70799, 81035, 94620, 97242, 102360, 129656, 141598, 162070, 189240, 194484, 212397, 243105, 283196, 324140, 353995, 388968, 424794, 486210, 566392, 648280, 707990, 849588, 972420, 1061985, 1345181, 1415980, 1699176, 1944840, 2123970, 2690362, 2831960, 4035543, 4247940, 5380724, 6725905, 8071086, 8495880, 10761448, 13451810, 16142172, 20177715, 26903620, 32284344, 40355430, 53807240, 80710860, 161421720]

約数ペア:

[(1, 161421720), (2, 80710860), (3, 53807240), (4, 40355430), (5, 32284344), (6, 26903620), (8, 20177715), (10, 16142172), (12, 13451810), (15, 10761448), (19, 8495880), (20, 8071086), (24, 6725905), (30, 5380724), (38, 4247940), (40, 4035543), (57, 2831960), (60, 2690362), (76, 2123970), (83, 1944840), (95, 1699176), (114, 1415980), (120, 1345181), (152, 1061985), (166, 972420), (190, 849588), (228, 707990), (249, 648280), (285, 566392), (332, 486210), (380, 424794), (415, 388968), (456, 353995), (498, 324140), (570, 283196), (664, 243105), (760, 212397), (830, 194484), (853, 189240), (996, 162070), (1140, 141598), (1245, 129656), (1577, 102360), (1660, 97242), (1706, 94620), (1992, 81035), (2280, 70799), (2490, 64828), (2559, 63080), (3154, 51180), (3320, 48621), (3412, 47310), (4265, 37848), (4731, 34120), (4980, 32414), (5118, 31540), (6308, 25590), (6824, 23655), (7885, 20472), (8530, 18924), (9462, 17060), (9960, 16207), (10236, 15770), (12616, 12795)]