81639960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:681

約数の個数: 128

約数和(自身を含む): 262483200

約数和(自身を除く): 180843240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 61, 76, 95, 114, 120, 122, 152, 183, 190, 228, 244, 285, 305, 366, 380, 456, 488, 570, 587, 610, 732, 760, 915, 1140, 1159, 1174, 1220, 1464, 1761, 1830, 2280, 2318, 2348, 2440, 2935, 3477, 3522, 3660, 4636, 4696, 5795, 5870, 6954, 7044, 7320, 8805, 9272, 11153, 11590, 11740, 13908, 14088, 17385, 17610, 22306, 23180, 23480, 27816, 33459, 34770, 35220, 35807, 44612, 46360, 55765, 66918, 69540, 70440, 71614, 89224, 107421, 111530, 133836, 139080, 143228, 167295, 179035, 214842, 223060, 267672, 286456, 334590, 358070, 429684, 446120, 537105, 669180, 680333, 716140, 859368, 1074210, 1338360, 1360666, 1432280, 2040999, 2148420, 2721332, 3401665, 4081998, 4296840, 5442664, 6803330, 8163996, 10204995, 13606660, 16327992, 20409990, 27213320, 40819980, 81639960]

約数ペア:

[(1, 81639960), (2, 40819980), (3, 27213320), (4, 20409990), (5, 16327992), (6, 13606660), (8, 10204995), (10, 8163996), (12, 6803330), (15, 5442664), (19, 4296840), (20, 4081998), (24, 3401665), (30, 2721332), (38, 2148420), (40, 2040999), (57, 1432280), (60, 1360666), (61, 1338360), (76, 1074210), (95, 859368), (114, 716140), (120, 680333), (122, 669180), (152, 537105), (183, 446120), (190, 429684), (228, 358070), (244, 334590), (285, 286456), (305, 267672), (366, 223060), (380, 214842), (456, 179035), (488, 167295), (570, 143228), (587, 139080), (610, 133836), (732, 111530), (760, 107421), (915, 89224), (1140, 71614), (1159, 70440), (1174, 69540), (1220, 66918), (1464, 55765), (1761, 46360), (1830, 44612), (2280, 35807), (2318, 35220), (2348, 34770), (2440, 33459), (2935, 27816), (3477, 23480), (3522, 23180), (3660, 22306), (4636, 17610), (4696, 17385), (5795, 14088), (5870, 13908), (6954, 11740), (7044, 11590), (7320, 11153), (8805, 9272)]